There are three things to do when the material is stacked up and down
In a cylinder, the side wall of a cylinder is fixed a few plates of iron (the width of a cylinder is a third of the cross section of the cylinder, non-contact like a paw), rolling the bottle, leaving the inlet and outlet
Fire proof, waterproof and center of gravity
Fire prevention, waterproof, and do not exceed the limit.I hope my answer will help you.
Make fire prevention, moistureproof, upper light to put orderly easy to find.I hope my answer will help you
