零件

汽车零件，气门，曲轴，凸轮轴，齿轮，气簧活塞杆，减震器杆，差速器支架，球面销等十几种零件，以应用多年，效果显著。

Automobile parts, valve, crankshaft, camshaft, gear, air spring piston rod, shock absorber rod, differential support, spherical pin and so on are more than ten kinds of parts, which have been used for many years with remarkable effect.