welding electrode holder: 1.CCC approval ... 4.all brands need 30Professional manufacturer of electrode holders: Material:iron,brass Material:bakelite,it ... electrode holders available 2) Types: American type, Holland type, Italian type, Japanese type,Korean type3)Applications:welding ... ;heavy working;hard working etc300A:22cm 500A:25cm in lenghth supply 300A,400A,500A welding electrode ...