... and nonexplosive materials with a Moth's hardness below 7 scale, a humidity below 6%, such as barite, calcite, potash, pencil ... , marble, limestone, ceramic, glass and other materials which used in mining, construction, chemical and metallurgy. The size of powder can be ... .125-0.0440.4- 1.6153.651 R Pendulum Mill For SALE 3R2115