... 2.ISO 9001:2008 certificate 3.for welding of ships , boilers, pressure vessels 1.AWS E7018 IS A KIND OF LOW HYDROGEN ... AC AND DC CURRENT.SUITABLE FOR WELDING OF CARBON STEEL AND LOW ALLOY STEEL STRUCTURES.SUCH AS WELDING OF BOILER,BRIDGE,PRSSURE VESSELS AND ... 170--200 210--250 ABS, GL .BV approved low hydrogen carbon steel,good quality,low price, small spatter , low fume,Welding electrode AWS E7018