About
Changzhou Zhongyun Electric Co., Ltd.
A plastic extrusion factory in Changzhou, Jiangsu. We produce PMMA and PC tubes, rods and profiles, custom ABS, ASA and PE sections, and finished products from our own tooling such as wall corner guards.
We became an extruder because we could not buy what we needed
In 2000 Li Zhiwei started this company making Christmas lights, and then gift and decorative lighting, for customers in Europe and North America.
One of those products was a water lamp, and the part we could not buy was its acrylic tube. Not to the standard our customers were signing off — not from anyone in China at the time. So in 2003 we bought two extrusion lines and learned to make it ourselves. Round tube, nothing else, for our own assembly line.
That is a backwards way to become an extrusion factory, and it is the thing worth knowing about us. We did not buy a machine and then look for someone to sell to. We started with a specification we kept failing, set by customers who were already auditing us, and we stayed on it until the tube passed.
The same gate, twenty-one years apart
On the left, 2003 — the year the first two extrusion lines went in. On the right, the same entrance in 2024. The sign has not moved, and neither have we.
We were exporting before we were extruding
Most extrusion factories in China meet European and North American requirements second-hand — relayed by a trading company, an agent, or a customer's engineer who is three time zones away. We had those customers first and the extrusion line second. When you send us a tolerance, a finish standard or a packing specification, it is read by people who spent years on the receiving end of the same documents.
The first tube we sold to someone else
Our first large outside order for tube was round tube for the housing of an indoor ceiling light sold by IKEA. We should be precise about that, because suppliers are often not: we were not contracted to IKEA. Their supplier came to us, and we made the tube that went into their product. Second tier, not first. What matters is the specification, and the specification was the same class of requirement we had failed to buy against a few years earlier — except now it was ours to hold.
The first tube we exported in our own name came from an enquiry on Alibaba. Both routes are still open: some customers reach us through the people who already build for them, and some simply find us and write.
Second generation
Li Ke, the founder's son, has run the business since 2009.
The order we got wrong
A Canadian customer, early in our export years. We had their surface requirement in writing. What we did not have was the environment the part actually lived in — so the internal standard we set against their written requirement was not the standard the application really needed. The first shipment landed and the surface was not right for the job.
We paid the compensation. Then we rebuilt how the factory works, from the moment an order is accepted through to the moment it ships, so that what we produce against is what the part actually has to survive. That class of failure has not come back since.
It also changed how we quote. Before we make anything, we tell you how we have read your requirement and what we would recommend given where the part will actually be used. If our reading is wrong, both of us would rather find out in an email than in a container.
Customers who stayed
Our longest-running customer has been with us for more than 20 years — a model maker, for whom we produce the housings. About 50% of our customers have been buying from us for more than ten years.
That is the number worth asking any supplier for. A price can be matched in a week; a ten-year account cannot. It is also the honest answer to why we would rather tell you at enquiry stage that a tolerance needs confirming, or that the section you have drawn will be difficult to hold, than win one order and lose the decade.
Where our products go
We ship to 15+ countries. Our largest export markets are:
- Netherlands
- Italy
- Canada
- Chile
- Brazil
- Russia
Contact
| Address | No. 18 Hexiang Road, Wujin Economic Development Zone Changzhou, Jiangsu, China |
|---|---|
| Contact | Mr. Li Ke |
| sales.kli@cz-zy.com | |
| Phone | +86 137 7560 8300 |
| Hours | Mon–Sat 8:30–17:30 (GMT+8) |