q345e耐低温圆钢，北铭供应

q345d线材φ8   φ10  φ12宝钢韶钢

q345d圆钢φ16本钢，莱钢，淮钢，苏钢

q345d圆钢φ18本钢，莱钢，淮钢，苏钢

q345d圆钢φ20本钢，莱钢，淮钢，苏钢

q345d圆钢φ22本钢，莱钢，淮钢，苏钢

q345d圆钢φ25本钢，莱钢，淮钢，苏钢?

q345d圆钢φ28本钢，莱钢，淮钢，苏钢

q345d圆钢φ30本钢，莱钢，淮钢，苏钢

q345d圆钢φ35本钢，莱钢，淮钢，苏钢

q345d圆钢φ36本钢，莱钢，淮钢，苏钢

q345d圆钢φ38本钢，莱钢，淮钢，苏钢

q345d圆钢φ40本钢，莱钢，淮钢，苏钢

q345d圆钢φ42本钢，莱钢，淮钢，苏钢

q345d圆钢φ45本钢，莱钢，淮钢，苏钢

q345d圆钢φ48本钢，莱钢，淮钢，苏钢

q345d圆钢φ50本钢，莱钢，淮钢，苏钢

q345d圆钢φ52本钢，莱钢，淮钢，苏钢

q345d圆钢φ55本钢，莱钢，淮钢，苏钢

q345d圆钢φ60本钢，莱钢，淮钢，苏钢

q345d圆钢φ65本钢，莱钢，淮钢，苏钢

q345d圆钢φ70本钢，莱钢，淮钢，苏钢

q345d圆钢φ75本钢，莱钢，淮钢，苏钢

q345d圆钢φ80本钢，莱钢，淮钢，苏钢

q345d圆钢φ85本钢，莱钢，淮钢，苏钢

q345d圆钢φ90本钢，莱钢，淮钢，苏钢

q345d圆钢φ95本钢，莱钢，淮钢，苏钢

q345d圆钢φ100本钢，莱钢，淮钢，苏钢

q345d圆钢φ110本钢，莱钢，淮钢，苏钢

q345d圆钢φ120本钢，莱钢，淮钢，苏钢

q345d圆钢φ130本钢，莱钢，淮钢，苏钢

q345d圆钢φ140本钢，莱钢，淮钢，苏钢

q345d圆钢φ150本钢，莱钢，淮钢，苏钢

q345d圆钢φ160本钢，莱钢，淮钢，苏钢

q345d圆钢φ170本钢，莱钢，淮钢，苏钢

q345d圆钢φ180本钢，莱钢，淮钢，苏钢

q345d圆钢φ190本钢，莱钢，淮钢，苏钢

q345d圆钢φ210本钢，莱钢，淮钢，苏钢

q345d圆钢φ220本钢，莱钢，淮钢，苏钢

q345d圆钢φ230本钢，莱钢，淮钢，苏钢

q345d圆钢φ250本钢，莱钢，淮钢，苏钢

q345d圆钢φ270本钢，莱钢，淮钢，苏钢

q345d圆钢φ280本钢，莱钢，淮钢，苏钢

q345d圆钢φ300本钢，莱钢，淮钢，苏钢

q345d圆钢φ320本钢，莱钢，淮钢，苏钢

q345d圆钢φ340本钢，莱钢，淮钢，苏钢

q345d圆钢φ365本钢，莱钢，淮钢，苏钢

q345d圆钢φ400本钢，莱钢，淮钢，苏钢我家还有q345d/e,3-200mm,圆钢φ14-200，q345d/e低合金，q690d高强板材等欢迎咨询