ceramic knife switch 1) Material:porcelain 2) 20A -200A ,3P 3) ODM ... specialized in the research, development and production of lamp holders, knife switch, fuse, insulator, ceramic tiles, and so on. We ... Payment:T/T or L/C at sight.knife switch, porcelain knife swtich , ceramic knife switch , knife switchPackage Details As Belowing: StyleModelQTY/CTNG.W ... /2236*30*36 double throw 3P ceramic knife switch