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ASA S1.22  
ASA S1.22 2021  
Scales and Sizes for Frequency Characteristics and Polar Diagrams in Acoustics
2500000 ریال  
ASA S1.22  
ASA S1.22 2007  
American National Standard Scales and Sizes for Frequency Characteristics and Polar Diagrams in Acoustics
1000000 ریال  




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