LSAW PIPE 1.Standards ANSI / API / AWWA / DIN / BS / JIS and etc. 2.Material: Carbon Steel, ... GrB,etc.4) Application:Structural pipe,liquid transportation,conveyance of oil and gas,petroleum transportation etc.5) Marking:the sizes,steel ... GrB,etc.4) Application:Structural pipe,liquid transportation,conveyance of oil and gas,petroleum transportation etc.5) Marking:the sizes,steel ...