... -welded steel pipe for pipelines for low pressure field fluid serviceSY/T 5040 Spiral submerged arc-welded steel pipe piles CJ/T 3022 Spiral submerged-arc welded steel pipe ... , 08F, 10F, 10, HG5, DF08 SPHC, M8 S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33,St37, St44 ...