... AND DC CURRENT.SUITABLE FOR WELDING OF CARBON STEEL AND LOW ALLOY STEEL STRUCTURES.SUCH AS WELDING OF BOILER,BRIDGE,PRSSURE VESSELS AND PIPES ... ETC.2.CHEMICAL COMPOSITION OF DEPOSITED METAL(%) C ... 170--200 210--250 ABS, GL .BV approved low hydrogen carbon steel,good quality,low price, small spatter , low fume,Welding ...