Warehouse and inventory
Bagged material and warehouse visuals help show there is a real operating base behind the inquiry.
Company identity, factory visuals, and supporting documents
Information buyers often want to verify first.
We understand that many buyers want to confirm supplier identity before spending time on detailed product discussion. We bring together company registration, factory visuals, and supporting references so you can cross-check who we are. Certificates and reports can be provided on request for relevant products and projects.
Legal registration
Official business license on file.
Our business license shows Yuyao Xinfeng Plastic Chemical Co., Ltd. as the legal entity. We share it here so buyers can verify the company name and address shown in our online company details.
Company name: Yuyao Xinfeng Plastic Chemical Co., Ltd.
Address shown online: No. 359 North Xinjian Road, Yuyao, Zhejiang Province, China.
Use on site: Proof of the company identity behind the Sinfone brand.
Factory visibility
Factory, equipment, and testing visuals from the operating business.
We prefer to show real factory, warehouse, line, equipment, and testing visuals instead of asking buyers to rely only on general marketing claims.
Production equipment
Equipment imagery supports the company profile references to compounding, mixing, and processing capability.
Testing support
Laboratory and testing instruments shown in company materials.
The company profile references tools such as a six-light source color assessment cabinet, melt flow indexer, colorimeter, aging tester, injection molding equipment for color matching, film-blowing equipment for dispersion review, impact testing, and analytical balance support.
Third-party report support
Relevant certificates, third-party reports, and supporting documents can be provided when they match the product or project under discussion.
Testing and quality control
In-house testing support helps us keep public claims disciplined and respond more carefully when buyers need project-specific review.
Direct review process
Initial qualification still goes through direct review, sample discussion, and project-specific response.
Additional references
Other places where buyers can cross-check us.
These references are supplementary proof, not replacements for project-specific documents. Both are Chinese-language pages, so overseas buyers can use browser translation when needed.
Chinese plastics platform
21cp company profile
A Chinese-language company profile on 21cp, a well-known plastics-industry platform in China. It gives buyers another place to cross-check business identity and product presence.
Open 21cp profile
Chinese domestic storefront
Taobao store reference
A Chinese-language domestic storefront with additional product images and reference listings. It can be used as an extra trust signal and visual reference by buyers willing to use browser translation.
Open Taobao store