... or glass fiber. 2.Jaw:brass or iron Japanese type Welding Holder,Weld Holder,300A,500A,800A1.Material of handle:Nylon or glass ... also manufacture other types welding holders,such as Korean type,Germany type,American type,Holland type etc.Contact Person : Mr.Alvin XuMobile :+86-( ... Industrial District,Yongkang City,Zhejiang Province,China 321300 300A-500A Japanese type Electrode Holder/Welding Plier