... Professional service with No MOQ!!!!!!! Folding sofa bed frame, metal sofa bed mechanism, three fold sofa ... wire for long life, balanced posture bed force distribution.4. Conform to sitting height. In order ... polypropylene decorative cloth to cover the metal frame and connect the attachment to avoid the ... damage of the metal layer mattress.8. Tubular frame, safe, smooth, beautiful ride comfort.Shun ...