Found 2 products about

GOST 12821 80 Pipe Flange

GOST Welding Neck Flange Manufacturer and supplier in China

GOST Welding Neck Flange Manufacturer and supplier in China

JS FITTINGS produce standard GOST flanges, GOST Welding Neck Flange, and export to Russia, Belarus, Ukraine, etc

Model:GOST 12821-80/GOST 33259-2015
ASTM A234 WPB blind flange for gas pipeline

ASTM A234 WPB blind flange for gas pipeline

JS FITTINGS produce standard black blind flange, red blind flange, and export to Russia, Belarus, Ukraine, etc