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تاریخچه استاندارد
ASME B31J  
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Standard Test Method for Determining Stress Intensification Factors (i-Factors) for Metallic Piping Components
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ASME B31J  
ASME B31J 2017  
Standard Test Method for Determining Stress Intensification Factors (i-Factors) for Metallic Piping Components
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ASME B31J  
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