Made of the ultra-thin sheet mesh woven from stainless steel wire and nickel wire, and expanded red copper ultra-thin sheet. Material: Stainless steel wire, nickel wire, red copper sheet. Use: Battery making. Specifications of Battery Mesh Thickness of Red Copper Belt 0.035mm-0.1mm Punched Thickness 1.2mm,1.5mm Width of Red Copper Belt 160mm-30mm Packing 30-40kg/carton Joint times <2/roll