tender for heavy duty vertical stacking system length inner to inner-3000mm(+/-50mm), in two slot, height-2000mm(+/-50mm), depth-600mm with four loading level capacity 600kgs udl. dimension as per attached drg.and material specification as per is:2062/is:10748/is:513-63/is:277. make-compair equipment,mewss,heatex .