大桥THM-309Mo(Y)不锈钢焊丝 ER309Mo埋弧焊丝 ¥30.00 大桥THM-309L(Y)不锈钢焊丝 ER309L埋弧焊丝 ¥30.00 大桥THM-309(Y) /THSJ601Y不锈钢埋弧焊丝 ¥30.00 大桥THM-308H(Y)不锈钢焊丝 ¥30.00 大桥THM-308L(Y)埋弧焊丝 ¥30.00 大桥THM-08Mn2MoA(Y)高强钢焊丝 ¥30.00