Jak uniknąć porowatości samoosłonowych drutów spawalniczych z rdzeniem topnikowym
In the last article we introduced what is copper-free welding wire and its advantages. As we know, there are mainly two kinds of welding wire according to its protection: One is the welding wire that relying on flux or gas protection, the welding wire plays as filling metal and conducting electricity, such as submerged arc […]
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