API5L X70 PSL2 LSAW steel pipeline is mainly used to petroleum power water gas,chemical and medical equipment,foodstuff,papermaking,aviation,smelting,boiler heat,shipbuilding,metallurgy.
GB/T 4171 Q295NH is the china Weathering steel plate standard. GB/T 4171 Q295NH Weathering steel plate also can be named GB/T 4171 Q295NH Corten steel plate which has good Corrosion resistance.