... 5)Standard: ASTM BS GB JIS APISize(O.D)Wall thickness (W.T.)15mm*15mm-600mm*600mm0.5mm- ... mainsDeep tube wells casing pipes, Gas/Natural gas pipe lines, Oil pipe lines, LPG & other non-toxic gas pipelinesIndustrial ... , Plumbing,Fabrication industry, Food Processing, Pharmaceutical, Petrochemical, Chemical, Machine Building, Automobile.Main marketNorth America South America Eastern Europe Southeast ...