Yu Xin Yu Shiyan industry and Trade Co., Ltd. has more than ten years of operating experience in engine parts. & nbsp; < br / > agent Jinyan brand series of cylinder liner, Wuhan hand valve, China Nanlei valve seat, Chengdu oil seal series, Binzhou crankshaft, Yang Chai, and four supporting cloud four matching. & nbsp; < br couples > South in natural gas partial products: valve and seat ring, a cylinder, a flywheel, a flywheel assembly, piston, piston ring, piston pin, spark plug, a bent shaft, a gasket, a connecting rod, a oil bottom shell, and other products exclusive agent, manufacturers of direct purchase, reduce intermediate links, and customers truly mutual reciprocity and mutual benefit.