Item:Recir Mechanism Parts Material:Steel Q235B Weight:5.7 kgs Life:20 years Surface Treatment:Electroretic paint Paint Thickness:0.2 mm Salt Spray Test:24 hours Seat and Back Fatigue Test:1500N 500N for 20000 cycles Seat Front Edge Fatigue Test:1000N for 20000 cycles MOQ:1 set Recir Mechanism Parts