gost-12821-welding-neck-flange-dimensions-pn63-6-3mpa
GOST /ГОСТ 12821 Welding neck flange Dimensions PN63 6.3Mpa Download the PDF PDF file: GOST /ГОСТ 12821 Welding neck flange Dimensions PN63 6.3Mpa All dimensions are in "mm" and All weights are in "kg" unless noted otherwise specified. you may also check non standard sizes flange weight online calculation,flange surface area online calculation,flange