Verify WCW — Legal Entity, UL File Numbers, Factory Audit

For procurement and supplier-qualification teams: WCW is a legally registered Chinese manufacturer — Unified Social Credit Code 9144030073884893X3, established 5 July 2002, registered capital RMB 10.2 million, operating address in Longgang District, Shenzhen. Our sleeving is UL Recognized under UL 1441 File E233803 and E233804, acrylic fiberglass sleeving additionally holds UL UZFT2 / CUL UZFT8, and the automotive quality system is IATF 16949:2016 (certificate No. 0502009, IATF USI PLT59E). We are a factory, not a trading company — and we would rather you audit that than take our word for it.

Step 1 · Legal Identity

The Company Behind This Website

A trading company can register any name and print any logo. A legal registration number cannot be invented — it is issued by the State Administration for Market Regulation and stays searchable for the life of the company.

Registered English name	Shenzhen Wahchangwei Industrial Co., Ltd.
Registered Chinese name	深圳市华创威实业有限公司
Unified Social Credit Code (USCC)	9144030073884893X3
Registration authority	Shenzhen Municipal Market Supervisory Authority, Longgang Bureau
Date of establishment	5 July 2002 (business term to 5 July 2032)
Registered capital	RMB 10.2 million, fully paid-in
Company type	Limited liability company (natural person investment)
Customs registration code	440373884893X — held in our own name, so we export directly
Registered scope (extract)	Production and sale of silicone fiberglass sleeving and silicone rubber sleeving; R&D and sale of electrical insulation materials; import and export operations; wire and cable; plastics manufacturing
Registered address	No.25 Langbei Village, 6th Industry Area, Tongde Community, Baolong Street, Longgang District, Shenzhen 518116, China

How to verify this yourself: search the USCC 9144030073884893X3 on China's National Enterprise Credit Information Publicity System (gsxt.gov.cn), or on Qichacha / Tianyancha / Baidu Baike. You will see the same legal name, the same 2002 establishment date, the same registered address and the same business scope. Note what the scope says: production of sleeving — not trading.

Step 2 · Certification Numbers

UL File Numbers You Can Look Up

Most supplier websites say "UL certified" and stop there. A UL file number is a public record in UL Product iQ — if a supplier cannot give you one, there is nothing to look up.

Standard / Scheme	File or Certificate No.	Covers
UL 1441 — Recognized Component Certificate No. E233803 · Report E233803-2012-03-27	E233803	Acrylic coated fiberglass sleeving ARG-WCW-1U (Grade A, USR/CNR)
UL 1441 — Recognized Component Certificate No. E233803 · Report E233803-2016-05-26	E233803	Silicone-polymer coated woven fiberglass sleeving (Grade A, USR/CNR): SRS-12, SRS-15, SRS-25, SRS-40, SGS-70
UL 1441 — Recognized Component Certificate No. UL-US-2000169-1 · Report E233804-20200512 · Category UZIQ2	E233804	Flame-retardant sleeving — full model list incl. SGS / GS-WCW / TGS-1W-600C / PSR series / PET-WCW-12KV / 20KV / GSG3-WCW / WSGS (see datasheets)
UL Category / CUL Category	UZFT2 / UZFT8	Acrylic-coated fiberglass sleeving, recognized since 2017 — a category held by roughly ten companies worldwide
IATF 16949:2016 IATF cert. No. · IATF USI: PLT59E	0502009	Design and manufacture of fiberglass sleeving and silicone rubber sleeving. Issued by SGS United Kingdom Ltd
ISO 9001:2015 / 14001:2015 / 45001:2018	Available on request	Quality, environmental, and occupational health & safety management systems
FDA / LFGB	Available on request	Food-contact compliance for silicone rubber tubing (PSR)
RoHS / REACH	Declaration per product	EU substance compliance across the product range

How to verify this yourself: open UL Product iQ (iq.ulprospector.com — free account, no commercial relationship with us required) and search the file number E233803 or E233804. The listing returns the file holder, the product category and the recognized constructions. Then compare the file holder name against our USCC above. If they match, you are talking to the factory that holds the certification — not a reseller quoting someone else's file number.
IATF certificate 0502009 can be checked with the issuing body (SGS) or through the IATF Certificate Validity Check; we will send the full PDF on request before any NDA is signed.

Step 3 · Manufacturing Footprint

Four Sites, One Owner

A trading company can rent an office. It cannot run 4,000 braiding machines. These are the sites that belong to the same legal group:

Shenzhen — HQ Plant (2002)

Original base. Business coordination, sample response, OEM project alignment, export documentation.
No.25 Langbei Village, 6th Industry Area, Baolong Street, Longgang, Shenzhen 518116

Shenzhen — Plant II (2007)

Shenzhen Huachangwei Technology Co., Ltd. Supplementary production and order-bridging capacity.
Liulian Community, Pingshan District, Shenzhen

Ningbo Wahchangwei Electrical Materials plant

Ningbo — East China Base (2012)

Ningbo Wahchangwei Electrical Materials Co., Ltd. East-China customer service, samples and regional project support.
Cicheng Town, Jiangbei District, Ningbo, Zhejiang

Heyuan — Core Manufacturing Park (2025)

Wahchangwei Industrial Park. 50,000 m² manufacturing center, 5,000 m² R&D center, new silicone wire, heat-shrink and corrugated tube lines.
Yuancheng Industrial Park, Heyuan, Guangdong

Step 4 · Audit It Live

Five Steps to Confirm We Are a Factory

If the numbers above are not enough — and with a Tier-1 supplier they usually should not be — do this instead. No NDAs, no technical data and no purchase commitment are required for any of it.

1️⃣

Run the registration number

Search the USCC 9144030073884893X3 in your own compliance system or on gsxt.gov.cn. Two minutes, no contact with us needed.

2️⃣

Look up the UL file

Search E233803 / E233804 in UL Product iQ and check that the file holder matches the legal name above.

3️⃣

Ask for a live video walk-through

We will schedule a real-time video call — not a pre-recorded clip — showing braiding, coating, extrusion and cutting lines running, plus the lab. You pick the time zone.

4️⃣

Send a third-party inspector

SGS, TÜV, Bureau Veritas, Intertek or your own nominated auditor. We host the visit, open the production floor and the QC records, and pay nothing to any of them for a favourable result.

5️⃣

Come and see it

Fly to Shenzhen or Heyuan. We will arrange pickup from Shenzhen Bao'an or Huizhou Pingtan airport and walk you through every line in person.

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Get the document pack first

Business licence, UL/CUL certificates, IATF & ISO certificates, test reports per product — supplied before any technical drawing is exchanged.

Why we lead with proof instead of pricing: for safety-critical insulation going into an ABB-class supply chain, a wrong supplier costs far more than a wrong price. We would rather spend a day proving we exist than discount a material that later fails a dielectric or thermal-aging test in your assembly. Send us your qualification checklist — we will fill it in as far as possible with public records, and flag what still needs your auditor.

WCW quality assurance office with framed UL, ISO and IATF certificates

Step 5 · What We Will Send

Documentation Before Dialogue

You should not have to hand over drawings to find out whether a supplier is real. Ask for any of these first — they carry no confidential technical content on our customers:

Business licence (Chinese + English translation)
UL / CUL certificates for the exact grade you need
IATF 16949:2016 and ISO certificates
Product datasheets: dimensions, temperature class, dielectric class, flame rating
Typical batch test reports: dielectric withstand, UL94 / VW-1, thermal aging, tensile, oil resistance
Customs registration code and export record summary
Non-disclosure agreement countersigned before any drawing is requested

Request the document pack →

Verify Us Before You Trust Us