Flanges

- GOST 12821-80/ ГОСТ 12820-80

- GOST 12822-80

- GOST 9399

- OST 26-842-73/ ОСТ 34-42-836-86

- GOST 28759.1-4-90

- DIN 2573, 2576, 2527, 2656, 2641, 2642, 2632, 2635, 2633, 2628, 2631, 2638, 2637, 2634, 2636, 2627, 2630, 86030,

- EN 1092-1

- ASME/ANSI В 16.47

Fasteners

(Studs, nuts)

Gaskets

(flat pipeline flange and spiral wound gaskets according to GOST, DIN and ANSI sizing)

Heads

- GOST6533-78

- GOST 12622-78

- DIN 28011

- DIN 28013

- NFE 81-103

- ASME VIII Div. 1.