耐热钢药芯焊丝TY-YR407
面议
钼铁粉
钨铁粉
钛铁粉
微碳铬铁粉
铸造碳化钨
堆焊药芯焊丝TY-YD25CrM
钨极氩弧焊填充焊丝TY-ER30
实心焊丝ER90S-B3
埋弧堆焊焊丝TY-YD203M
铜粉 Cu Powder
钴粉 Cobalt powder