Defects in the production of HFW steel pipes
HFW welded steel pipes are widely used in the transmission and distribution pipelines of oil, natural gas, water and other liquids, heating, cooling, ventilation pipes and steel structures for construction and other general purposes due to their precise production tolerances and high-capacity manufacturing methods .
Finishing: flat end, square cut or chamfer.
Black self-colored / uncoated;
Mill protective coating (varnish) on outside surface;
Three Layer Extruded Polyethylene – Polypropylene coating (plus rough coating);
Fusion Bond Epoxy Single – Dual Layer coating;
Liquid Epoxy coating