... the viscosity of the material (such as: wax, glue, ink) and contain fiber, sand (for example: pulp, cement mixing of ... rotation has an extremely long service life.<4>.Accuracy, function and application will other conditions remain unchanged, for flow measurement, ... aviation kerosene,pharmaceuticals,beverages,food, alcoholic,liquefied gas,paint and other acid,alkali,salt,water,oil all types of liquid ...