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          MB0543 office chair pull back impact test machine 
          
                    
          
                        
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          Applicable scope
          
                            
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	This test machine fixed the casters of office chairs, and repeated backrest movements on the backs of office chairs with certain strength, direction, stroke, speed and prescribed times. Then we examined whether the parts were loose or fastened.  

          
                    
          
                    
          
                        
          
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