Innerspring Units – Our jointly owned factory in China produces a wide variety of bonnell innersprings, regular and nested pocket coils, super elastic units, plus much more. Our factory is one of the few in China which draws it's own wire. The steel used is constantly monitored for its carbon content enabling us to maintain the highest quality standards for our innerspring units. Asian also sells metal and plastic corner guards, edge supports, foam, mattress sleeves, quilting/ticking, box springs, non-woven, felt pads, finished mattresses, pillows and other components.