Unadjustable Student Chair for Comfortable Learning Experience

Type 1 non-adjustable
Height group 1/2/3/4/5/5/6/7
Seat height 260/300/340/380/420/460/500
Effective seat depth * (minus 20 mm tolerance)260/290/330/360/380/400/420
Seat width , not less than 250/270/290/320/340/360/360/360
Height of the backrest bend line , not more than 160/170/190/200/210/220/230
Height of the lower edge of the backrest above the seat , max 120/130/150/160/170/190/200
Height of the upper edge of the backrest above the seat , max 250/280/310/330/360/400/440
Backrest width , not less than 250/250/250/280/300/320/320
Bending radius of the front edge of the seat 20-50
Backrest radius in plan , not less than 300
Seat inclination angle , degrees 0-4
Backrest tilt angle , deg 95-130