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    Petrochemical
    My countrys petrochemical industry proposed HG/T50634-2009 Fasteners for Steel Pipe Flanges. This standard refers to the American ASTM or ASME standard and adds new and unique technical clauses. It is suitable for a class of fastener products used in......
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Structural bolt Stud bolt Hex bolt

    Highway
    Expressway, referred to as expressway, refers to a highway dedicated to high-speed driving of automobiles. As of December 28, 2018, the total mileage of expressways in China has reached 140,000 kilometers, ranking first in the world. The steel specif......
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Hex bolt Stud bolt Structural bolt

    Shipbuilding
    Commonly used hull structural steels include general-strength steel (A, B, D, E) steel plates specified by GB712, high-strength steel (AH32, DH32, EH32, AH36, DH36, EH36) steel plates; GB5312 high-quality carbon for ships Plain steel (CIO, C20) steel......
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Structural bolt Hex nut hex bolt

    Tunnel application
    A tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels and so on. The structure of the tunnel inc......
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Hex bolt Stud bolt Structural bolt

    Bridge application
    The steel bars generally used for bridges are: ordinary steel du bars: R235, HRB335, HRB400, KL400. Prestressed dao steel bars: stranded zhuan, steel wire, fine-rolled threaded shu steel. For details, please refer to: Technical Specification for Cons......
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Structural bolt Stud bolt

    Railway industry
    In order to adapt to the continuous development of high-speed rail construction, the annual investment in railway construction has continued to increase. The total scale of Chinas railway fixed asset investment plan in 2010 is 823.5 billion yuan, of......
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