... welding 490MPa grade steel 3.Packing: TIG wire,spool and drum packing Mild steel wire ER70S-6-- Application: ER70S-6 is copper-coated gas-shielding ... welding wire.It is ... ER49S-6-- Approved by: ABS,TUV,BD,CPD,LR,FBTS,CCS-- Export area: about fifty countries,such as England,Americcan, ...