Hebei oil technological mechanical  Co. Ltd, founded in 1991 Hebei, P.R. China, is one of the largest suppliers of pipe fittings and flanges, Our grew into a significant manufacturing corporation that delivers varieties of types of materials of which are: carbon steel,???105 ???106???0#???0G???235???6Mn  etc.?????stainless steel (304???04L???21,316???16L???Cr18Ni9Ti   etc)and alloy steel(12Cr1MoV???r5Mo???0CrMo910???5CrMo???STM A234 WP1???P12???P11  etc  )??? Our products are designed to meet exacting requirements in industrial processes ranging from elbow , tee, reducer , to bend pipe, cap, stub end and series of forging and socket products for low ,medium and high pressure, which according to GB,DIN,ASTM, ANSI , JS, BS and so on international standard, We supplied the necessaries widely for the domestic industry of oil , chemical, gas , petrochemical ,shipbuilding , and fire control etc. for many years.