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GOST Welding Neck 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