Sign In | Join Free | My ccnmag.com |
|
ASTM A53 Tube Hollow Section Round Gi Pipe Zinc Coated Q195 Q235 Q345 Hot Dipped Galvanized Steel Pipe Tube Commodity Galvanized Steel Pipe Grade Q195, Q235,a36,ss400 etc SGCC, SGCH, SGC340, SGC400, ...