... year LSAW steel pipeis used in many applications such as Pipe Piling, Fabrication, Utility & Oil, Sign Poles, Offshore Drilling and Production, ... , BV, Lloyds etc.Quality Standard:GB/T3091 Welded steel pipe for low pressure liquid deliveryGB/T9711 Petroleum and natural ... Water, Gas, Air and SteamASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessDIN ...