Ceramic Knife Switch 1.Double throw 2.2P,100A, 3.Full Iron plated copper&zinc alloy 4.Good quality and low price Copper Ceramic Knife Switch1 ... . Knife:full iron copper-plating; iron copper-plating, Zinc alloy terminal6. Colors: yellow or other cover;7. Package details: standard exportable carton ; Copper Ceramic Knife Switch ...