All Structure made up of mild steel pipe maximum ∅ 60 mm to minimum ∅ 25 mm NB, B class conforming to IS 1239:2004 P.U coated with the layer thickness of 60 micron. All tubing used to manufacture components are electrical resistance welded, hot rolled, and high strength steel tubing.it is used in the various parts. also with API 5 licence/monogram.