Model:GOST Flanges
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JINAN HYUPSHIN FLANGES CO., LTD supply norm GOST 12820 PLANE FLANGE, GOST 12821 WELDING NECK FLANGE from China, pressure Class PN0.6MPA TO PN10MPA, size DN15 to DN2000, type SLIP ON FLANGE, WELDING NECK FLANGE, PLATE FLANGE, BLIND FLANGE, THREADED FLANGE, LAP JOINT FLANGE, SOCKET WELDING FLANGE etc, material ASTM A105, A350, Q235 carbon steel.