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    How to evaluate the quality of high strength large hexagon head bolt connection pair for steel structure connection?
    
		
    Clicks:17102020-09-27 15:37:00　
    
	
    
    
    
    	
    
		1. Tensile test of bolt: when the test tension reaches the tensile load specified in GB / t3098.1, it shall not be broken.	
    
	
    
		
    
			
    
				
								
    
				    		
			
    
		
    
	
    
	
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