Pupil's table "Trapezium 1P/2P", article C-11

Student desk "Trapezium 1P/2P", article C-11. Overall size 797 x 540 (1200 x 520) 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. The support part of the leg has an arc-shaped shape with an internal bending radius. Two threaded holes are made on the support, which are used to adjust the height of the desk.
The rigidity of the frame is provided by a crosspiece made of thin-walled electric-welded pipe, the crosspiece is fixed by welding between the support legs.
Height adjustment is provided by telescopic movement of pipes. The adjusting mechanism on each support leg is fixed with two bolts, the holes for the adjusting bolts are not through, nuts are not used.
The upper part of the frame is made of two thin-walled flat-oval electro-welded tubes, in which holes are drilled for fixing...