1. ISO9001,14001,10012 2.smooth surface 3.with 300-500kg capacity 4.can be extended and adjusted 1. ISO9001,14001,10012 2.smooth surface 3.with 300-500kg capacity 4.can be extended and adjusted Structure and features:1.Medium-duty shelf is made up of upright, beam and layer panels ect.2.The shelves can easily be set to any height individually, so as to satisfy the operating requirements for ...