DIN 2631 - san-chuen.com.twsan-chuen.com.tw/pdf/DIN-2631.pdf · DIN FLANGE WELDING NECK FLANGE...
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DIN 2631 - san-chuen.com.twsan-chuen.com.tw/pdf/DIN-2631.pdf · DIN FLANGE WELDING NECK FLANGE 1-1). Nominal Pressure 6 The flanges with the dimensions Of this standard and made of