... shelving 2.knocked-down 3.flat pack 4.factory price metal rack metal shelf heavy duty mobile shelving Model No.#JT-802Materialcold-rolled ... sizeThicknessbase 3.0mm,stand column 1.8mm,beam 1.5mm,tier plate 1.0mm,track 3.0mm,track core 20*20 ... solid rectagle tubeLoadeach tier can load 300kgsPacking knocked-down,flat packPaymentT/T30% deposit,T ...