Pupil's adjustable desk "Extra 1P/2P" gr. 2,3,4,5,6,7, article C-12

Desk pupil adjustable "Extra 1P/2P" gr. 2,3,4,5,6,7, article C-12. Overall size 700 x 500 (1200 x 500) mm - single desk (double desk).
The height of the desk is adjustable and corresponds to the height group: 2-4 (520-580-640 mm), 3-5 (580-640-700 mm), 4-6 (640-700-760 mm), 5-7 (700-760-820 mm).
The lower part of the frame is made of thin-walled electric-welded pipe with diameter of 32 mm and wall thickness of 1.5 mm. The upper part of the adjusting mechanism is made of thin-walled electric-welded pipe 32 mm in diameter, wall thickness 1.5 mm. The support part of the leg has an arc-shaped form with an internal bending radius of 365 mm, to which adjoins a vertical support with a diameter of 28 mm, on which a thin-walled cold-rolled electric-welded pipe with a diameter of 32 mm is put on top, four holes are made in it to adjust the height of the desk. The 28 mm diameter support has two threaded holes, which are used to adjust the height of the desk.
The rigidity of the frame is ensured by a lintel made of thin-walled...