API 5L carbon seamless steel pipe 1. many different sizes of the products 2..low and medium ... ,high pressure API 5L carbon seamless steel pipeA: Pipe and tube Size Range:1) Round pipe diameter: 8mm-3000mm, thickness: 0.4-60 ... , blank, bright and galvanized, or painted C: Length of each pipe: 500mm-16,000mmD: Steel grade: 10#, 20#, A106B, A53B, ... X60, A312, 304, 316 etc API 5L carbon seamless steel pipe