... 3.welding of stainless steel, carbon steel, copper etc, and fit for acid, alkaline etc. Electrode welder ZX7 Serial Main ... welding of stainless steel, carbon steel, copper etc, and fit for acid, alkaline and cellulose type electrode.l Suitable for ... industry, foodstuff, medicine, environment – protection and decoration etc. Electrode welder ZX7 -200TTechnical parameters:Input voltage (V): 220Rated input ...