... force, a long life and a small vibration.2.The improved vibrator is used, which features a light weight, a ... : silica sand, alumina, grinding material, glass powder, refractory material.3.Food industry: sugar, salt, alkali, gourmet powder, starch, milk powder, ... bean milk, yeastsmust, pollen, food additive.4.Paper-making industry: whitish soil slush, black and ...