... /A53A/A53B/ A178A179 C/A210C Features:1ProductCarbon Steel Seamless pipe ASTM A 106 GRB2Type Hot rolled ,cold ... rolled steel tubes are avalible here 3Applicationuse for oil well, boilers, precision machines, petro-chemical, ship, structure pipe, ... automobile,shock absorber,building, geology, fluid tubes, line pipe etc4Mill Certificate Mill Test Certificate ...