... adjust arm and other spare parts.3,BPW standard1,Huangjing Machine manufacture Co.,LTD was found in 2002 and is an ISO9001:2000 and ... other trailer parts.2, We have automatic stamping machine,multi-stage stamping machine,Welding robot,advanced painting equipment,enable to new ... fixing.3.HJ axle bearing position is used the grinder machine to machine to keep the concentricity. After process, to limit ...