Student non-adjustable chair "Extra R plastic SIGMA" gr. 4,5,6,7, article ST-05

Stool pupil non-adjustable "Extra R plastic SIGMA" gr. 4,5,6,7, article number ST-05. The height of the chair is not adjustable and corresponds to the height group: 380-420-460-500 mm.
The frame is made of thin-walled cold-rolled, electrically welded pipe. The rigidity of the frame is ensured by a lintel made of thin-walled electric-welded pipe, the lintel is fixed by welding between the support legs.
To ensure the strength and elasticity of the frame, two stop strips are installed under the seat. The support leg is arc-shaped with an inner radius.
The backrest and seat are ergonomically shaped plastic with anti-slip zones. The entire surface of the seat and backrest is matt with a fine relief to reduce the visibility of scratches during use. The colour of the plastic can be agreed upon with the customer. The seat measures 460 mm in width, 423 mm in depth and 25 mm in height. There are eight through holes along the front edge of the seat. On the rear edge of the seat of the chair there are through holes...