manufacture GOST12820-80 slip on flat face pipe flange

GOST 12820-80 FORGED Flange FLAT FLANGE, PLATE FLANGES, FF FLANGE. DN15-DN1200, CT20, FORGED, PN6-PN40, RUSSIAN STANDARD FLANGE. 

1) GOST12820-80 PN6, PN0.6MPA, DN15-DN1200, PLATE FLANGE, FLAT FLANGE, PLAIN FLANGE, SLIP ON FLANGE, 20# steel, CT20 Steel.
2) GOST12820-80 PN10, PN1.0MPA, DN15-DN1200, PLATE FLANGE, FLAT FLANGE, PLAIN FLANGE, SLIP ON FLANGE, 20# steel, CT20 Steel.
3) GOST12820-80 PN16, PN1.6MPA, DN15-DN1200, PLATE FLANGE, FLAT FLANGE, PLAIN FLANGE, SLIP ON FLANGE, 20# steel, CT20 Steel.
4) GOST12820-80 PN25, PN2.5MPA, DN15-DN1200, PLATE FLANGE, FLAT FLANGE, PLAIN FLANGE, SLIP ON FLANGE, 20# steel, CT20 Steel.
5) GOST12820-80 PN40, PN4.0MPA, DN15-DN1200, PLATE FLANGE, FLAT FLANGE, PLAIN FLANGE, SLIP ON FLANGE, 20# steel, CT20 Steel.

2. Certification: ISO9001, CE, PED 4.3-97/2/EC, KS, EN10204 3.1.

3. Package: Plywood Pallet, Plywood Case, Plywood Box

4.Coating: Black Paint, Yellow Paint, Light Oil, Electro Galvanizing, Hot Dipped Galvanizing, etc

5. CARBON STEEL: 20#, CT20, Q235B, A105, 16Mn, 20Mn.