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
JS FITTINGS produce standard GOST flanges, GOST Welding Neck Flange, and export to Russia, Belarus, Ukraine, etc
Model:GOST 12821-80/GOST 33259-2015
JS FITTINGS produce standard black blind flange, red blind flange, and export to Russia, Belarus, Ukraine, etc