... ceramic knife switch 1.Double/Single throw 2.2P20A,2P30A,2P60A,2P100A 3.Full iron plated copper 4.Safe usage single throw ceramic knife ... Full iron plated copper,zinc alloy wiring post Fuzhou Kexin Ceramic & electronic Co., ltd has been specializing in manufacturing porcelain ... of porcelain products from socket, terminal block, lamp holder, knife switch, insulator, to fuse. If any of the item interest ...