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　　As the quality of seamless steel pipe products continues to rise, the use of raw materials is declining, a variety of new building materials are also listed, and the renewal of construction products is also fast. All kinds of management manufacturing industry have a strong foundation.

　　The main products on the market are stainless steel, carbon steel and other API 5CT 12 Inch seamless steel pipe of different calibers; and various elbow pipe fittings as well as pipe fittings and plastic pipes, with numerous sizes. These products are widely used in petrochemical, shipping and other engineering fields.  Now the seamless steel pipe industry is also struggling, so that the pipeline industry has set off another upsurge.

　　Seamless steel pipe products need to be diversified and personalized, and to maintain the quality of products, can not allow a unit to produce too many varieties of products in order to schedule, so seamless steel pipe enterprises pursue quality assurance, otherwise products like diversification is useless. Because the quality of domestic steel pipe products is not particularly stable at present, it is necessary to produce long-term, stable and reliable mass production of products with quality assurance. In this way, the yield of products has been improved, energy consumption has been reduced, and brand awareness has been created.

　　Seamless steel pipe is mainly used in shaft parts. Seamless steel pipe is mainly used to support transmission parts, transfer torque and bear load. Shaft parts are revolving parts whose length is larger than diameter. They are generally composed of outer cylindrical surface, conical surface, inner hole, thread and corresponding end face of concentric axis. According to the different structural shapes, shaft parts can be divided into optical axis, stepped shaft, hollow shaft and crankshaft.

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