Example of a conventional value:

1-1S 6.3×3.0 GOST 5496-78
Tube of a group 1, type 5, medium hardness, with an inner diameter of 6,3 mm and wall thickness of 3,0 mm

Tube 25S 20,0×4,0 GOST 5496-78
Tube of a group 2, type 5, medium hardness, with an inner diameter of 10,0 mm and wall thickness of 2,0 mm

They are designed for fluid, air and gas supply with a pressure not above 0,05 MPa (group 2) or without an overpressure (group 1), can be applied in various industries. In addition, the tubes can be used as sealing components of fixed joints.