7310.29.00.55—Tanks, casks, drums, cans, boxes and similar containers, for any material (other than compressed or liquefied gas), of iron or steel, of a capacity not exceeding 300 liters, whether or not lined or heat insulated, but not fitted with mechanical or thermal equipment, refillable stainless steel kegs, whether or not pressurized, of a kind described in statistical note 1 to this chapter