1)Suitable for conveyance of gas, petroleum, fluid, and electricity 2)Seamless,SAW and ERW steel pipe 3)THK <2.4" 4)OD ... <12" A: Pipe and tube Size Range:1) Round pipe diameter: 8mm-3000mm, thickness: 0.4-60.0mm2 ... , blank, bright and galvanized, or painted C: Length of each pipe: 500mm-16,000mm D: Steel grade: 10#, 20#, A106B, A53B ...