三宝红铜 T1 T2 T3 TAg0.1
三宝红铜 H3100 C1100
三宝红铜 T1 T2 T3 ..
铬钼钢 SNCm240 SN..
铬钼钢 SNCm630 SN..
铬钼钢 SNCm615 SN..
铬钼钢 SNCm430 SN..