welding electrode holder: 1.CCC approval 2.model:200A,300A,400A,500A 3.high quality with competitive price 4.all brands need ... ,brass or cooper material; 2,usually,we can supply you 300A,500A; 3,we can do new mould for you base on ... type, Holland type, Italian type, Japanese type,Korean type3)Applications:welding;heavy working;hard working etc300A:22cm 500A:25cm in lenghth