"Tolerances Pipe" CNS Standards List| Safety Code | Alloy Tool | Guide Tap | Assembly tools | Wax Coated | Gas burning | Beltled flange | Hydraulic Cylinders |  | 
          
  
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			CNS 7120 
			            2022 Edition  Tolerances for Pipe Flange 管凸緣尺度公差  | 
           
			
			 
			
		
			
			
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			CNS 7120 
			            2020 Edition  Tolerances for Pipe Flange 管凸緣尺度公差  | 
           
			
			 
			
		
			
			
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