... operation; 3.OEM service; 4.Warranty:2 years. Office Chair Polyurethane Foam Injection Machine Features 1.Low pressure PU ... service life,color additive available;6.Cover most applications for processing polyurethane (filling, casting and injecting) with ... .High resilience foam: bicycle cushions,car cushions, seat cushion, back cushion, chair cushion, sofa cushion, headrest, mattress, massage cushion ...