短語(yǔ)詞組短語(yǔ)welding g rod 焊條;焊枝alloyed welding wire rod 合金焊盤條welding wire rod 焊線welding -rod production line 焊條生產(chǎn)線gas -welding ? rod 氣焊焊條welding g rod extrusion press 焊條擠壓機(jī) 返回 welding rod