... to our factory visit negotiate business, filter1. Tpyes of rich;Range of OD: from 25mm to 650mm.Aperture range: from ... reverse flushing device)can bear the pressure of 300 kilograms of above(durable)large filter area.novel structure; ... saving, flexible adaptable ;multi-perpose filter equipment;4.Application of industryChemical industry, petroleum, metallurgy, environmental protection, textile, medical ...