1.Bonnell spring,kniting fabric 2.compressed,factory price 3.OEN&ODM manufacture 4.CFR1633&BS7177 5.Sample acceptable spring mattress:(1) ... (13*24), 336 (14*24), 364 (14*26). Consistent spring diameter and even waist diameter provides increased stability and supporting ... ,magnetic board, wire manager,storage,keyboard tray etc. Spring Mattress export compressed bonnelll spring mattress for sale 2012