供应圆钢Q34B,Q345D,Q345E 20CRMOTIH

供应耐磨板NM360A,NM400A,NM450A,NM500

现货库存销售Q345E，Q345B,Q345D大规格圆钢

销售锻圆Q345D圆钢,Q345E正火锻圆，Q345B调质锻圆 现货

加工锻造35CRMO,42CRMO圆钢,20CRMO调质锻圆

供应容器板Q245R,Q345R,16MNDR,SA516