... -100kg Specifications1.closed die forging gear wheel 2.N+T+Q (heat treatment) 3.ISO9000,GL,BV,ABS 4.30 years ... of heavy forging workpiecesStandards: ASTM, ASME, DIN, SIS ,GB, EURONORMCertification: ISO9001: 2000 ,GL,ABS,TUV Materials: Carbon, stainless steel ,alloy steel,etcDelivery ...