Specializing in the production of perforated wool tube billet, hot-rolled steel tube, cold-drawn steel tube, precision seamless tube. Specifications 10-219mm annual production capacity of 55000 tons. Standing billet 10 # 20# 45# Q345B (16MN) 20Cr 40Cr 20CrMo 35CrMo 42CrMo 20CrMnTi 27SiMn and other special alloy tubes. Durable, Galvanized & Perforated perforated steel pipe sa209 sa213 t1 t1a t1b perforated steel pipe for boilerGrab some of the most sturdy and efficient perforated steel pipe importer for distinct commercial and industrial uses at . These perforated steel pipe importer are strong and long-lasting.