1. Main components of PU form lab chair: One-time forming PU foam seat with seat 440x420mm and back 400x320mm. Seat and back are with Anti-skid pattern. Adjustable PU foam armrest. 2.Bottom base: electroplating steel plate. 3.Connection part of bottom base: elastic electroplating steel plate with width 60mm and thickness 6mm. It’s with reinforced rib complying with human engineering. 4.Surface electric …