1.it is with excellent quality,competitive price and excellent after sale service. 2.after ISO9001, TTMA.AAR specification. technical requirement1.Remove all burrs parts before assembly, ashes2 rotating parts to add the lubricating grease.3 flexible rotation, no blocking phenomenon. s/ncodenamematerialquantity/100unit weight/kg1ZJ2Z-1-0center hanger 117.9732GB/T9457-1988the six corners of the ...