PP filter bag for engineering precision of deep three-dimensional filter material, the main material of polypropylene: acid and alkali resistance, temperature 90℃, non-woven fiber, the depth of the filter range of 0.5-300um. Our company adopts advanced hot melt combination technology, to ensure that the PP filter bag has the best joint strength, prevent leakage, applying the extended to high field to filtration precision and efficiency requirement, our company's sewing filter bag sewing is very rigorous, solid and durable, the sealing effect of the sewing combination play to the best, pure car suture does not contain silicone oil lubricant, such as composition, Avoid the secondary pollution existing in ordinary sewing.