expanded vermiculite 1. the volume can increase 5-6 times 2.used in heat preservation material 3.golden ... of light density, cold-resist, heat insulation, sound absorption. Can be widely used in construction, electric power, petroleum, chemical, ... materials, be animal feed, deodorant, animal drugs, pesticides, etc., can also be used as pesticides, fungicides, disinfectant, organic compounds (camphor ...