Industrial Custom Coil Springs , Custom Automotive Coil Springs Oxidative Blackening

We just provide to factory customers under their authorization!!!!!

If you are end user, please contact specified authorized distributor or agent to buy the geniune ones as spare parts!!!!!

we mainly provides all kinds of springs with wire diameter of 0.1-100MM: 0.1-20MM cold coil springs are mainly used in automobile chassis system (suspension spring, stabilizer rod) and power transmission system (clutch, hydraulic torque converter, dual mass flywheel) and other automobile springs; 20-100MM hot coil springs with wire diameter are mainly used in rail transit shock absorption (ground). Rail, high-speed rail, light rail, construction machinery (excavators, bulldozers, etc.), power stations, valves, military and other fields;