Specification:

1. Seats &  Backs: use thickness of 1.3mm Cold-rolled steel plate, through stamping and welding, after antirust dealing & electronic polishing,  then bear static coating .                                       

2. Arm & leg: use thickness of 1.1mm Cold-rolled steel plate, through stamping and welding, after antirust dealing & electronic polishing,  then bear chrome plated .                                 

3.  Crossbeam: use thickness of 1.5mm, size of 40*80mm steel tube,through stamping and welding, after Antirust dealing & electronic polishing,  then bear static coating .