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Auto & Transportation manufacturers in China

China is the world’s largest producer of auto parts, tires and electric two-wheelers. Tire makers cluster in Shandong (Qingdao, Weihai, Dongying); brake and chassis parts in Zhejiang (Hangzhou, Wenzhou, Ruian); e-bikes in Wuxi and Tianjin; motorcycles in Chongqing. Aftermarket buyers should check DOT marking for tires, FMVSS compliance for safety parts and CARB/EPA rules for engines.

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Buying guide: Auto & Transportation from China

Major exporters hold DOT registration and mold the DOT code on every tire; ask for the plant code and test reports (FMVSS 139). Note that passenger and light-truck tires from China carry AD/CVD duties — confirm the current rate for landed cost.

Give OE part numbers and year/make/model. Ask for interchange lists and fitment data; order samples for test fitting. Reputable suppliers run IATF 16949 systems and provide PPAP documents on request.

E-bikes must meet CPSC 16 CFR 1512 and, in practice, UL 2849 for the electrical system (required by NYC and many retailers). Batteries need UN38.3. Motors over 750 W or speeds over 28 mph change the legal class in most states.