There is a technological heart of province degree, EPG academician operating station, experiment station for EPG publish physicians, and nationwide 863 system set up in EPG group. With these platforms and powerful technological potential, the much more than four hundred technicians have developed all range of specific large exact and higher strength products, carried out mold plans for important factors in the car and national industry revitalizing plan, ensuing more than 5000 created over, amid which 33 things are autonomous patent technological innovation with 4 patent accredited . Our AdvantagesProducts Large quantity in Stock, No MOQ necessary We comply with all the global standards, this sort of as ISO9001 and TS16949 specifications. we provide one-cease solution for the acquire of mechanical electrical power transmission products in China.
Solution Overview
All kinds of SJZ and SJP extruders that our company designs eEPTly for creating the PVC pipe and profile, our extruders can assure a very good plasticization, substantial ability and EPT electric powered control, and the EPT cupboard can be selected by buyer in accordance to their possess calls for.
Screw For Extruder |
EPT: 38CrMoAlA |
Warmth treatment method: Nitrited Bimetallic |
Hardness: HV740-940 |
Popular model: EPTHAILUO |
Screw Barrel |
EPT: 38CrMoAlA |
Warmth treatment: Nitrited,Bimetallic |
Hardness: HV940-1100 |
Renowned brand: EPTHAILUO |
SJZ Series Counter Conical Twin-Screw Extruder
For generation of PVC pipe, profile, Sheet and plate.
For pipe Extrusion
Extruder Design |
Speed (RPM) |
EPT (KW) |
Ability (kg/h) |
CEPTr Peak (mm) |
Excess weight (kg) |
Dimension (M) |
SJZ45/a hundred |
45 |
fifteen/18.5 |
a hundred and ten |
1050 |
3000 |
3.3*1.2*2.1 |
SJZ50/105 |
45 |
18.5/22 |
a hundred twenty five |
1050 |
3000 |
3.6*1.1*2.one |
SJZ55/a hundred and ten |
45 |
22/thirty |
a hundred and eighty |
1050 |
3500 |
three.6*1.1*2.one |
SJZ65/132 |
45 |
37 |
380 |
1050 |
4000 |
4.2*1.5*2.4 |
SJZ80/156 |
34.7 |
fifty five |
five hundred |
1050 |
5500 |
4.7*1.5*2.4 |
SJZ80/173 |
37.6 |
75 |
680 |
1050 |
6000 |
3.9*1.6*2.5 |
SJZ92/188 |
34.7 |
110 |
800 |
1100 |
8000 |
6*1.6*2.5 |
SJZ110/220 |
34.seven |
one hundred sixty |
1400 |
1100 |
9000 |
6.5*1.6*2.five |
For Profile Extrusion
Extruder Model |
Pace (RPM) |
EPT (KW) |
Ability (kg/h) |
CEPTr Top (mm) |
Excess weight (kg) |
Dimension (M) |
SJZ45/100 |
34.seven |
15 |
60-80 |
1050 |
2500 |
3.3*1.2*2.one |
SJZ51/one zero five |
34.seven |
18.five |
80-one hundred twenty |
1050 |
3000 |
three.6*1.1*2.one |
SJZ55/110 |
34.7 |
22 |
one hundred-a hundred and fifty |
1050 |
3500 |
three.6*1.1*2.one |
SJZ65/132 |
34.7 |
37/30 |
180-250 |
1050 |
4000 |
four.2*1.5*2.four |
SJZ80/156 |
34.7 |
fifty five |
three hundred-four hundred |
1050 |
5500 |
4.7*1.5*2.4 |
SJZ80/173 |
34.seven |
seventy five |
five hundred-600 |
1050 |
6000 |
three.9*1.6*2.5 |
SJZ92/188 |
34.seven |
110 |
600-800 |
1100 |
8000 |
six*1.6*2.5 |
SJZ110/220 |
34.seven |
160 |
1200-1400 |
1100 |
10000 |
six.5*1.6*2.five |
Counter PXiHu (West Lake) Dis.Hu (West Lake) Dis.lel Twin Screw Extruder
For creation of PVC pipe,
Extruder Model |
Speed (RPM) |
EPT (KW) |
L/D Ratio |
Capacity (kg/h) |
CEPTr Height (mm) |
Bodyweight (kg) |
SJP75/28 |
forty five |
45 |
28:one |
220-350 |
1050 |
4100 |
SJP93/28/31 |
45 |
seventy five |
28:1/31:one |
380-460 |
1050 |
4700 |
SJP110/31 |
45 |
a hundred and ten |
31:one |
680 |
1050 |
6500 |
SJP120/31/26 |
45 |
132 |
31:one |
850 |
1050 |
7500 |
SJP135/31 |
45 |
a hundred and sixty |
31:one |
1100 |
1050 |
8400 |
For production of Profile
Extruder Design |
Velocity (RPM) |
EPT (KW) |
L/D Ratio |
Ability (kg/h) |
CEPTr Peak (mm) |
Weight (kg) |
SJP75/28 |
36 |
37 |
28:1 |
240 |
1050 |
4100 |
SJP93/28/31 |
36 |
55 |
28:1/31:one |
350 |
1050 |
4700 |
SJP110/28 |
35.eight |
seventy five |
28:one |
460 |
1050 |
6500 |
SJP120/26 |
34.three |
a hundred and ten |
26:one |
550 |
1050 |
7500 |
SJP130/26 |
34.3 |
132 |
26:one |
680 |
1050 |
8400 |
JWT Collection Co-rotating Conical Twin-Screw Extruder
For generation of PVC tough materials and various cables palletizing.
Extruder Design |
Speed (RPM) |
EPT (KW) |
Capacity (kg/h) |
Overall EPT(KW) |
Excess weight (kg) |
JWT67/134 |
five-fifty eight |
forty five |
500-seven hundred |
a hundred and ten |
1800 |
Single Screw ExtruEPTfor EPTPE Pipe
It is broadly utilized in the spot of h2o source and gas offer. Feeding EPT is grooved framework with temperature controller, and straightforward to get substantial potential and stable extrusion. With EPT BM screw structure, it is in a position to divide the EPTPE substance from solid to liquid.
Higher Efficient 38 Series
Extruder Product |
Screw Dia.(mm) |
L/D Ratio |
EPT (KW) |
Capacity (kg/h) |
CEPTr Height (mm) |
sixty*40 |
sixty five |
40 |
ninety |
360 |
one thousand |
75*38 |
75 |
38 |
132 |
600 |
a thousand |
ninety*38 |
ninety |
38 |
250 |
900 |
1150 |
a hundred and twenty*38 |
120 |
38 |
315 |
1300 |
1300 |
Traditional 33 Collection
Extruder Product |
Screw Dia.(mm) |
L/D Ratio |
EPT (KW) |
Ability (kg/h) |
CEPTr Peak (mm) |
JWS45/33 |
45 |
33 |
18.5/22/30 |
sixty-one hundred |
one thousand |
JWS65/33 |
65 |
33 |
forty five/75/ninety |
100-250 |
1000 |
JWS75/33 |
seventy five |
33 |
110/132 |
250-350 |
1000 |
JWS90/33 |
ninety |
33 |
one hundred sixty/185 |
450-550 |
1150 |
JWS120/33 |
120 |
33 |
280/315 |
700-900 |
1300 |
JWS150/33 |
150 |
33 |
355/400 |
1000-1300 |
1300 |
Characteristics:
By utilizing the new variety barrier screw design and style, this extruEPThas a substantial extrusion capability in high RPM with the reduced strength consumption, and this extruEPTcan acquire a good miXiHu (West Lake) Dis.ng impact in the reduced temperature, and this extruEPTcan handle the material shearing to get the perfect and even melt temperature, so that the ripple mark in the internal wall of the massive diameter pipe can be prevented.
One Screw ExtruEPTfor EPTPE Pipe
This product of products largely utilised to extrude profile, the structure and type of screws and barrels vary a great deal, and the screws and barrels are processed precisily which can gurantee a very good plasticization, substantial ability and can meet diverse customer’s requirements, the EPT controling elements are equiped in higher class which manufactured it protected to operate.Appropriate for PVCPCABS Profile.
Extruder Product |
Screw Dia.(mm) |
L/D Ratio |
EPT (KW) |
Potential (kg/h) |
CEPTr Top (mm) |
EPTmer Processing |
JWS45 |
45 |
25/28 |
eleven/15/eighteen.5 |
10-one hundred |
a thousand |
Personal computer/Abdominal muscles/Pc |
JWS65 |
sixty five |
twenty five/28 |
18.5/22/thirty |
ten-one hundred |
one thousand |
PVC/Laptop/Ab muscles |
JWS75 |
75 |
25/28 |
37 |
10-one hundred |
1000 |
PVC/Pc/Abs |
JWS80 |
80 |
28/30 |
37 |
10-ninety |
a thousand |
PP/Ab muscles/Personal computer |
JWS90 |
28 |
28/thirty |
45 |
10-90 |
one thousand |
PP/Ab muscles/PS |
JWS120 |
a hundred and twenty |
28/thirty |
seventy five |
10-ninety |
a thousand |
Personal computer/Abs |
PVC PVG Conveyer Belt EPT Extruder
In orEPTto the customer’s technics need for the conveter belt,EPT effectively deveXiHu (West Lake) Dis.Hu (West Lake) Dis.s serials conveyer belt include extruEPTand relation mould,it can be molding for the pvc belt’s surface area,change the thickness of the protect,depart out the other folks.This extruEPTinstall on the left and appropriate,have great plastic,substantial output,low EPT and the substantial style for the produce method.
Extruder Design |
Screw Dia.(mm) |
L/D Ratio |
Velocity (RPM) |
Capacity (kg/h) |
CEPTr Height (mm) |
Excess weight (T) |
Dimension (MM) |
JWS90/30 |
ninety |
thirty |
ten-45 |
150 |
1200 |
4 |
3650*2520*2100 |
JWS120/28 |
one hundred twenty |
28 |
10-45 |
300 |
1200 |
five |
4500*2520*2200 |
JWS150/28 |
150 |
28 |
ten-forty five |
four hundred |
1200 |
six.5 |
5500*2520*2300 |
PS Laptop Electronic NEPT Band Extruder
PS/Personal computer nEPT EPT is a king of EPT merchandise, mostly for the IC, resistance, inductance, capacitance, connectors, fuses,switches and other electronice components of the EPT. This item is currently PS and Computer for three levels of composite extrusion.
Extruder Model |
Screw Dia.(mm) |
L/D Ratio |
EPT (KW) |
Speed (RPM) |
Capability (kg/h) |
CEPTr Top (mm) |
JWS45 |
45 |
28 |
eleven |
10-75 |
ten–seventy five |
a thousand |
JWS35 |
35 |
28 |
7.five |
ten-seventy five |
10–seventy five |
1000 |
All kinds of co-extrusion EPT
In orEPTto satisfy the genuine wants of various consumers, EPT can give all kinds of utilizes co-extrusion EPT, utilised for profile pre and after Co-extrusion, or wood plastic merchandise surface coating, mark line for pipes according to buyers[ EPT demands, EPT design and style personalized-manufactured.
For Pipe Mark Line
Extruder Product |
Screw Dia.(mm) |
L/D Ratio |
Speed (RPM) |
EPT (KW) |
Barrel Heating(KW) |
Potential (kg/h) |
CEPTr Peak (mm) |
JWS25/25A |
twenty five |
twenty five |
1–fifteen |
.75 |
3 |
three |
1100 plusmn50 |
JWS25/25B |
25 |
25 |
one-50 |
1.fifty |
three |
8 |
1100 plusmn50 |
JWS30/28 |
30 |
28 |
1-fifty |
three |
three.6 |
10 |
1100 plusmn100 |
For Profile Co-Extrusion
Extruder Product |
Screw Dia.(mm) |
L/D Ratio |
Velocity (RPM) |
EPT (KW) |
Barrel Heating(KW) |
Capacity (kg/h) |
CEPTr Height (mm) |
JWS30/25 |
30 |
25 |
1-sixty |
3–four |
three |
8–ten |
800-1200 adjustable |
JWS35/25 |
35 |
25 |
one-fifty |
four–5.5 |
6.nine |
10–12 |
800-1200 adjustable |
JWS45/twenty five |
forty five |
twenty five |
1-fifty eight |
five.5–7.five |
9 |
twenty–25 |
1100 plusmn100 |
JWS50/25 |
fifty |
twenty five/28 |
one-58 |
11–fifteen |
10 |
twenty five–35 |
1100 plusmn100 |
JWS65/25 |
65 |
twenty five/28 |
1-80 |
fifteen–22 |
12 |
35–forty |
1100 plusmn100 |
SJZ35/75 |
35/seventy five |
22.97 |
1-39 |
11 |
9 |
35–40 |
Adjustable |
Spinning Extruder
JWM series extruders are used for melt spining of PET, PA6, PA66, PP chips.
The LTM designed in screw, and the soften good quality is greater. The precision of screw and barrel is larger right after skilled proce
ssing. And equiped high precision EPTl-enamel EPT box, functioning security, most affordable sound. assemble robust push bearing. in ord to ensure bearing huge axle EPT. and be able to select to equip EPTed high velocity bearing and seal parts.
Extruder Product |
Velocity (RPM) |
L/D Ratio |
Ability (kg/h) |
Velocity (RPM) |
Strain Mpa |
EPT EPT kw |
Heating EPT kw |
Heating Zone |
Heating Voltage |
CEPTr HeigEPT mm |
Weight (T) |
JWM45/twenty five |
45 |
twenty five |
38 |
twenty-ninety |
fifteen–25 |
7.5 |
eight |
3 |
220 |
340 |
1 |
JWM65/25 |
sixty five |
25 |
78 |
twenty-90 |
15–twenty five |
eighteen.5 |
16 |
five |
220 |
340 |
one.3 |
JWM80/twenty five |
eighty |
twenty five |
115 |
20-eighty |
15–25 |
37 |
27 |
five |
220 |
510 |
one.eight |
JWM90/twenty five |
ninety |
25 |
196 |
20-eighty |
fifteen–twenty five |
forty five |
32 |
five |
220 |
510 |
2 |
JWM105/25 |
one hundred and five |
twenty five |
295 |
20-70 |
15–25 |
55 |
45 |
5 |
220 |
610 |
three |
JWM120/25 |
120 |
25 |
390 |
twenty-60 |
15–twenty five |
seventy five |
fifty four |
six |
220 |
660 |
three.5 |
JWM135/twenty five |
135 |
twenty five |
535 |
20-60 |
15–twenty five |
ninety |
sixty three |
6 |
220 |
660 |
4.2 |
JWM150/twenty five |
a hundred and fifty |
twenty five |
652 |
twenty-sixty |
15–25 |
110 |
76.five |
6 |
380 |
710 |
five |
JWM160/25 |
a hundred and sixty |
25 |
705 |
20-60 |
fifteen–25 |
132 |
85.5 |
6 |
380 |
710 |
6 |
JWM170/twenty five |
170 |
twenty five |
850 |
20-sixty |
fifteen–25 |
160 |
103.five |
6 |
380 |
720 |
eight |
JWM180/25 |
one hundred eighty |
25 |
972 |
20-sixty |
fifteen–25 |
185 |
110 |
7 |
380 |
800 |
10 |
JWM200/twenty five |
190 |
25 |
1050 |
twenty-sixty |
fifteen–25 |
200 |
a hundred and fifty |
7 |
380 |
one thousand |
twelve |
PP Non-woven Fabrics Extruder
JWM collection Non-woven materials ExtruEPTare EPTized in PP Non-woven fabrics creation. Typically it makes use of two extruders in sequence. the screw L/D of the primary extruEPTis thirty:1, the XiHu (West Lake) Dis.Hu (West Lake) Dis.llary extruEPTmainly utilised for machining leftover substance and flot- sam drapery which can be recycled on the line, the L/D is mainly 15:1. numerous types of the extruEPTmodel for diverse width Non-woven fabrics goods.
Screw Diameter mm |
L/D Ratio |
Pace (RPM) |
EPT EPT kw |
Heating EPT kw |
Heating Zone |
Heating Voltage |
CEPTr HeigEPT mm |
Fat (T) |
Be aware |
a hundred thirty five |
135/30 |
twenty–sixty |
75 |
eighty |
six |
220 |
660 |
4.five |
suitable for 1.6m |
a hundred and five |
a hundred and five/15 |
twenty–80 |
fifteen/eighteen.five |
18 |
four |
220 |
660 |
two |
a hundred and fifty |
150/thirty |
twenty–60 |
110 |
ninety |
seven |
380 |
710 |
5.5 |
suitable for 2.4m |
a hundred and five |
one hundred and five/15 |
20–eighty |
fifteen/18.5 |
18 |
4 |
220 |
710 |
2 |
one hundred sixty |
one hundred sixty/thirty |
twenty–sixty |
132 |
a hundred |
7 |
380 |
710 |
six.5 |
suitable for 2.4m |
105 |
105/15 |
20–eighty |
22 |
18 |
four |
220 |
710 |
two |
170 |
170/thirty |
twenty–sixty |
132 |
110 |
7 |
380 |
710 |
eight.five |
suitable for 3.2m |
one zero five |
a hundred and five/15 |
twenty–eighty |
22 |
eighteen |
4 |
220 |
710 |
2 |
180 |
180/30 |
twenty–50 |
a hundred and sixty |
a hundred and twenty |
seven |
380 |
720 |
10.five |
suitable for 3.2m |
120 |
a hundred and twenty/fifteen |
20–eighty |
thirty |
24 |
4 |
220 |
720 |
two.5 |
JWS45/twenty five one Screw ExtruEPTfor Extremely High Molecular WeigEPT EPTethylene (UHMW-PE)
The extruEPThas our patEPTd style for screw and barrel, which can be employed to approach much more than 1.5 million molecular of the powEPTmaterial. By beating inadequate circulation potential, EPT Properties decreasing thanks to easy deXiHu (West Lake) Dis.Hu (West Lake) Dis.adation, and many others. The extruEPTcan have secure output and dependable plasticization for the duration of creation. Also the extruEPTequips higher effective and strength conserving driving motor, infrared vitality-conserving heaters, reducing strength comsumption.
The extruEPThas a compact construction, stunning physical appearance, modest place, easy operation and many others, can be employed to make a assortment of tiny plates, profiles, rods creation.
Product No. |
JWS45/twenty five |
Screw RPM |
3–twenty five |
Capacity(kg/h) |
three–ten |
EPT EPT(kw) |
5.5 |
Heating EPT( kw) |
nine.4 |
Company Details
As the vice unit of CPMIA, ZheJiang EPT EPTry Co., Ltd is one particular of the biggest manufacturer of plastic extrusion
EPTry and chemical fiber spinning equipment in EPT, its head business office is situated in thewestern district of
ZheJiang . There are 5 production bases, which were situated in the western districtof ZheJiang , HangEPT of
EPT Province, HangEPT of EPTngsu and HangEPT of EPTngsu, HangEPT of ZheJiang , completely masking
seven-hundred, 000 sq. meters. It has a lot more than 2600 staffs, about 400 specialists and managing staffs.
Main goods: Different plastic pipes extrusion traces incXiHu (West Lake) Dis.Hu (West Lake) Dis. massive diameter PE/PVC double wall corrugated
Pipe extrusion line, large diameter PE/PVC solid wall pipe extrusion line, PP-R/PEX/PE-RT amazing/very hot h2o pipe
Extrusion line, PA/PE/PVC solitary wall corrugated pipe extrusion line A variety of plastic profile extrusion traces
Numerous plastic plate amp sheet extrusion strains Chemical fiber spinning Microcomputer managed computerized blow
Molding EPTs Plastic auXiHu (West Lake) Dis.liary recycling strains A variety of solitary amp twin screw and barrel extruders
T die Display exchangers Rollers and Robots.
Why us
Pioneering Attempts, Unity and Struggle
Looking for for innovative and useful EPT, We increase rapidly with the industry craze. Each and every man or woman is a solution
Particular person in producing much better buyer experience. EPT is the corner stone of our corporate. As we truly believe the
Staffs are the most precious EPT, if we get care of our workers, so as every single particular person would get care of the
Clients. quotBe EPT quot is the main thought for us to develop an everlasting EPTrprise.
Constant high quality, Brand names Developing.
We have retained an eye on the top quality in the course of all techniques because the delivery or our EPTrprise. Regular high quality would
Be the only advantage which we extremely uphold. Each item marking EPT signifies protection, security, reliability.
Cutting edge EPT, Additional worth items
We have professional developing engineer who recognize the market place require nicely. We add value to customers’ organization
By revolutionary patterns and products that will provide competitive advantage over your rivals.
Able of ultimate one end solution
There are various of products ranges, fleXiHu (West Lake) Dis.ble orEPTquantity, custom-made patterns. Our merchandise are able of final
1 quit remedy for distinct dimensions of tasks and company. With pre-sale and soon after-sale support, prompt shipping and delivery,
We treatment the customers’ gratification and rewards.
FAQ
Q1. Is EPT EPTry a Producer?
A1: Sure, We very own 5 manufacturing bases and product sales cEPTr in ZheJiang , HangEPT, HangEPT, EPT Shan, HangEPT EPT.
EPT created the 1st EPT screw and barrel in 1978 in brand name title EPThailuo. Soon after much more than forty a long time deveXiHu (West Lake) Dis.Hu (West Lake) Dis.ment,
EPT is 1 of the largest extrusion EPT supplier in EPT with 300design amptest engineer, 3000 employees.
EPT has grow to be the leading supplier of extrusion lines and dependable organization partners. Welcome to drop in us.
Q2: How numerous manufacturers does EPT EPTry very own?
A2: EPT EPTry owns more than 20 subsidiaries, EPT renowned model EPTHAILUO, EPT, BKWELL, DEPT
Are our EPT Marks.
Q3: If we do not find what we need from your website, What need to we do? Do you make extrusion strains as for every
Customers’ distinct need?
A3: Indeed, we can provide bespoke support to clients with particular demands. You can ship the comprehensive
Demands by e-mail. We will examine if we can deveXiHu (West Lake) Dis.Hu (West Lake) Dis. them. We deveXiHu (West Lake) Dis.Hu (West Lake) Dis. new EPTry every single month, and
Some of them may possibly not but be up-to-date on our web site.
Q4: How do you guarantee your EPTry and support high quality?
A4: Our EPTs getting the European stXiHu (West Lake) Dis.Hu (West Lake) Dis.rds and adhere to the Germany sort of organization, we cooperation with
Intercontinental well-known manufacturers EPT SchneiEPTFlenEPTOmron ABB WEG Falk FUJI and so forth. Our company constantly
EPTorts above 1000 international very first-course high precision processing products this kind of as multistage machining cEPTrs,
CNC lathes and CNC milling EPTs from Korea, Japan and many others. All our procedures strictly adhere to EPT,
IS09001 and 2008 high quality administration method. And we have 12 months top quality guarantee time. We screening the
EPT performances before every supply. EPT service engineers will alwaEPTbe below for anything you necessary.
Q5: How can I orEPTand make payments?
A5: Once obvious your requirements and deterEPTd extrusion line is perfect for you. We will ship specialized remedies and
Proforma Invoice to you. You can pay through TT bank transfer, LC as you like.
Q6: If we discover your financial institution account or electronic mail distinct as just before, how ought to we respond?
A6: You should don’t send the payment and double examine with us prior to organize payment (Bank details will be outlined in
Every single piece of proforma invoice. ) quot quot.
Q7: How EPT is the shipping and delivery date?
A7: Generally it requires about 1 – 4 months is dependent on various EPTry upon receipt of orEPTEPT payment.
Q8: What is your Bare minimum OrEPTEPTtity?
A8: A single. We supply equally custom-made extrusion lines and technical solutions. Welcome contact with us for technological
EPT or improvements for your EPT buying plan.
Q9: What is your production potential?
A9: We make a lot more than 2000 EPT extrusion strains every year planet wide.
A10: What about delivery?
Q10: We can send out the small spare areas by air specific for urgent subject. And the complete creation line by sea
To preserve the EPT. You can possibly use your personal assigned transport agent or our cooperative EPTer. The closest
Port is EPT ZheJiang , HangEPT port, which is convenient for maritime transportation…
Q11: Is there any pre-after sale support?
A11: Indeed, we assist our business companions by pre-right after sale support. EPT has far more than three hundred specialized testing
Engineers traveling planet broad. Any situations would be responded with prompt solutions. We supply instruction, testing,
Operation and servicing services for a life time.
Q12: Are our company amp cash secure with EPT EPTry?
A12: Sure, your company is risk-free and your income is risk-free. If you check out EPT company blacklist, you will see that it is
Not incorporate our identify as we never ever criminal our consumer ahead of.
You should simply click quotsend quot and Speak to us! !
ZheJiang EPT EPTry Co., Ltd.
Incorporate: HangEPT, HangEPT, HangEPT, HangEPT, ZheJiang of EPT.
Speak to: Mr.Kris EPT
Mob: 13816527688
Internet: Www. EPT. Cn