... drilling tool, alloy saw blade, hard alloy cutter, milling cutter, reamer, planning tool and solid center bit. 2. Welding of various ... same variety or different varieties, such as hardware toilet and kitchen products, refrigerating copper fitting, lamp decoration fitting, ... stainless steel products, such as stainless steel basin, annealed and extruded can, annealed folded edge, annealed sink, stainless ...