( 2 tons heavy duty) storage rack 1.High grade Q235B Steel 2.Capacity:500kg-3000kg per level 3.Assembled free ( 2 tons heavy duty) storage rackThe heavy type of ... Specs:1) Uprights:75*66mm, 90 *66mm, 100 *66mm, 120 *66mm, etc.2) Box beams: 80*50mm, 90*50mm, 100*50mm, 110 ... *50mm, 120*50mm, 130*50mm, 140*50mm, etc., 3) Horizontal & diagonal ...