... 5.ISO9001:2000,CE,RoHs heavy duty shelving and selective pallet racking 1, heavy duty selective pallet racking ,There ... capacity. They are light-duty, medium-duty and heavy-duty racks. 2, heavy duty selective pallet racking-------Light-duty storage Racks (general angle ... form selective upright frames. 4, heavy duty selective pallet racking-Medium-----Heavy-duty storage racks structure is assembled, so ...