1. steel pipe factory 2. ISO9001 standards 3. min order 1 ... material etc 5. used for cylinder etc 2" steel pipeA: Round pipe diameter: 20-185MM, thickness: 1.5-15MM.B ... , or painted C: Length of each pipe: 6M or according to customer requirementsD: Steel grade: 20#, 45#, Q195, Q235, ... us, we are sure to satisfy you with our professional information, top quality products, best price, and efficient ...