... assembly,providing all kinds of suspension system and other trailer parts.2, We have automatic stamping machine,multi-stage stamping ... suspension assembly,28T cantilever bogie and semi trailer spare parts.Production features:1. HJ bogie&trailer axle beam, which has the advantages of ... with you!1,Supply various camshafts for trucks, semi-trailer parts.2,produce Brake drum, Brake shoe and other spare ...