... .Type: American, German (BPW,FUWA,SAF) 3.Use:Round, Square Suspension Parts MaterialSteel 8mm, 10mm, 12mm TypeSuspention Assembly OEM NO.American ... ISO9001:2000/TS16949 Supention parts: front hanger, middle hanger with Equalizer, rear hanger, U bolt, Leaf Spring Seat, Axle Bracket.Ajustable ... successfully certified with TS16949 and ISO9001/2000 quality control system. Trailer Suspension Parts