Name: ERW steel pipe Standard: EN39, EN10219 Material: Q235, Q345 Specification: 1" to 16" ... .1810273.09.2712323.810.3114355.611.1316406.412.701. Commodity: weld pipe2. Standard:EN39, EN102193. Material: Q195, Q215, Q235, Q345, #10 ... : black or paintAlso, we can produce as your special requirment. weld pipe