焊 接：各种金属制品钎焊、各种刀具刀片、锯片锯齿的焊接、钢管、铜管焊接、同种异种金属焊接；

Welding: all kinds of metal products brazing, all kinds of tool blade, saw tooth welding, steel pipe, copper pipe welding, the same kind of dissimilar metal welding;

youdao

焊 接：各种金属制品钎焊、各种刀具刀片、锯片锯齿的焊接、钢管、铜管焊接、同种异种金属焊接；

Welding: all kinds of metal products brazing, all kinds of tool blade, saw tooth welding, steel pipe, copper pipe welding, the same kind of dissimilar metal welding;

youdao