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普通無鍍銅碳鋼焊絲ER50-6
ER50-6 ER70S-G 用于碳鋼及500MPa級高強鋼的車輛、建筑、造船、橋梁等結構的焊接。
For welding of carbon steels and 500Mpa high strength steels, used in car, building, ship-building and bridge.
