(3) the tank or container used to store coal or mineral powder that flames easily. Must be created with fire resistant material with a mitchit lid and keep it away from heat sources.
(3) tanks or containers used to store coal or mineral powder that can easily catch fire. Must be built with fire-resistant materials with lids tightly and keep it away from heat sources.
(3) the tank or container used to store coal or mineral powder burning easily. To build with refractory with lid tightly and keep away from heat source.