... widely applied to produce high viscosity sealant, silicone rubber, neutral and acidic glass cement, chewing gum, bubble gum, ... , ink, pigments, dyes, pharmaceuticals, resins, plastics, rubber, cosmetics and other industries. 2. Category: There are four kinds ... ball valve type and screw extrusion type. 3. Characteristics: Control and record the temperature, time, viscosity and other relevant data ...