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            Products Grade: Q235NH、G295NH、XG295NH
          
      
          
      
            Specifications: 5.5-38mm
          
      
          
      
            Applied Standard:  GB/T4172 or agreement
          
      
          
      
            Characteristics: Mainly used to produce fasteners of class 4.8-6.8

          
      
          
      
            Applications: Common fastener
           
      
      
        
      
      
      

      Use of Products: These product have characteristics of uniform chemical composition, low percentage of harmful elements, high purity, tight tolerance, good surface quality. The products can be used without heat treatment and surface treatment, and will be excellent weather-resistant performance.