... designed adopting by equivalent the ISO1050-75 and conforming to ZBJ1005, 1-2-88 professional standard. On account of ... structure with a dust-proof sealed appliance,the sealed material is nylon plastic which can give a better seal effect ... lump.Working temperature:-20~50Working inclination angle:≤20Application :plastic, Abradant material, chemical industry, pharmacy, building materials, food, carbon, ...