Standard: GB, ASTM, BS, GB/T 3091-2001, ASTM A106-2006, ASTM A53-20 Grade: Q195-Q345 Thickness: 0.8 - 3 mm Section Shape: rectangular Place of Origin: Hebei, China Application: Structure Pipe Technique: erw Certification: ISO9001 Surface Treatment: galvanized Alloy Or Not: Non-alloy Tolerance: �±3% Type: welded steel pipe Processing Service: Bending, WELDING, Decoiling, PUNCHING, Cutting Product name: Galvanized Steel Pipe Technology: ERW Tube Usage: Construction Structure Shape: Square. Rectangular MOQ: 1 Ton Length: 5.8m-12m Product: Square Hollow Section Steel Tube Payment terms: T/T Material: Q195/Q215/Q235/Q345/10#/20# Packing: STANDARD PACKING