residues and waste from the food industries; prepared animal fodder tobacco and manufactured tobacco substitutes salt; sulphur; earths and stone; plastering materials, lime and cement ores, slag and ash mineral fuels, mineral oils and products of their distillation; bituminous substances; mineral waxes...
convenient. it is also important to make sure you stay on top of ordering your stock. don't leave it to the last minute. making sure you have reserve is extremely important; you should always aim to have at least spare wax in every room. for example if you have treatment rooms you should have a minimum of waxes...