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Rubber & Plastics manufacturers in China

Guangdong, Zhejiang (Taizhou, Yuyao) and Jiangsu are the centres of plastics processing and mold making; Ningbo builds most of the world’s injection machines. Buyers can source resins, custom injection-molded parts, rubber seals, films and complete molds. China’s mold shops offer the fastest route from CAD to production tooling.

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Buying guide: Rubber & Plastics from China

Send 3D files (STEP), resin spec, annual volume and target cavitation. Expect DFM feedback in 3–5 days, T1 samples in 25–45 days. Specify mold steel (P20 for <500k shots, H13/S136 for high volume or clear parts), hot-runner brand and guaranteed shot life in the contract. Mold ownership transfers to you on final payment — put it in writing.

Ask for FDA 21 CFR 177 compliance, LFGB or EU 10/2011 reports, BPA-free statements and, for toys, CPSIA/ASTM F963 phthalate testing by a CPSC-accepted lab.

Compression-molded rubber: 1,000–5,000 pcs; silicone products: 500–2,000 pcs; extruded profiles: 500–1,000 m. Tooling US$500–3,000 per part.