... effect is good.It is easy to use and widely used in petroleum, chemical industry, fuel, metallurgy, pharmacy, food, paper making, coal ... as 3.0 Mpa.6. Widely used in oil, chemical industry, dye, metallurgy, pharmacy, food, paper making and sewage treatment, and ... various need solid-liquid separation fields, apply to small filter industry, use commonly pressure is low, less than 0.4 Mpa pressure ...