1.Item:Q345 Galvanized Steel Pipe 2.Grade:Q195, Q235, Q345, 10#, 20#, A53, ... Galvanized Steel Pipe , galvanized steel pipe Q345,galvanized steel tube,carbon steel pipe Q345StandardBS1387, BS4568, ASTM A53, GB/T3091-2001,etcRelated GradeQ195,Q235,Q345,10#,20#,A53,A36,Round ... pipe,chemical coking equipment of oil heater, condensation cooler, coal wash oil distillation exchange for tube, and pier pile, ...