250A58进口欧洲弹簧钢东莞明富现货销售
250A58弹簧钢进口原装料明富钢材专业供应
优质弹簧钢250A58欧盟牌号规格齐全全国直销
明富钢材优质销售---250A58弹簧钢C. Si. Mn. S. P.
明富钢材优质销售---250A58弹簧钢0.58% 1.75% 0.75% 0.05% 0.05%
明富钢材优质销售---250A58弹簧钢250A58 is a silicon mangenese spring steel, commonly supplied in the as rolled contition. As a spring steel grade 250A58 is suitable for oil hardening and tempering