直接淬火型:35S2035SPb2036***n1436***nPb1438***n2838***nPb2844***n2844***nPb2846S2046SPb20…..螺栓用钢和锚链用钢:32***38***42***38B338CB338CB120MB538MB525CD430CD434CD438CD442CD430CND820NC1135NCD16..XC38H238C242C232***38***42***21B328B338CB120MB538MB525CD430CD434CD438CD442CD430NC1130NCD16…….)