Difference between Bai Gang welding wire and ordinary oxygen shielded welding wire.

Ordinary core, whether it is an iron anchor. Or a bridge or

E7 1

The colors of E7 1Ni and 8 1k2 are the same as those of stainless steel, and they are both current and voltage. Commonly used techniques are serrated crescent moon, which is divided into positive and negative, single character and double character, and double character is rarely used.