Process of oil casing

　　The global steel industry is still full of challenges and opportunities.  Oil Casing are not only used to transport fluids and powdered solids, to exchange heat, to manufacture machine parts and containers, and as an economic steel. With oil casing manufacturing building structure grid, pillars and mechanical support, can reduce the weight, save 20 to 40% of metal, and can be mechanized factory.API 5CT Slotted Oil Casing manufacturing road bridge can not only save steel, simplify the construction, but also can greatly reduce the size of the protective coating layer, saving investment and maintenance costs.