1.Item:Q345 Galvanized Steel Pipe 2.Grade:Q195, Q235, Q345, 10#, 20#, A53, A36, 3.WT: ... .Products Description Material Q345 Galvanized Steel Pipe , galvanized steel pipe Q345,galvanized steel tube,carbon steel pipe Q345StandardBS1387, BS4568, ASTM A53, GB/ ... as the oil industry, especially the ocean oilfield oil well pipe, oil pipe,chemical coking equipment of oil heater, condensation cooler, coal ...