... 250V,300V,450V,600V4.Style:1WIRE,2WIRES,3WIRES5.Fitting: cooper,iron,aluminum,nickelplate6.Package:standard export packing Fuzhou Kexin Ceramic ... porcelain products from electrical ceramic connector, lamp holder, knife switch, insulator, to fuse. Please feel free to contact us if ... you are interested in our electrical ceramic connector.