Woven fabric valve pockets are mainly made of polypropylene or polyethylene, extruded and stretched into flat silk, and then woven and woven. Woven bags have high impact resistance, strong and resilient properties, and are resistant to various organic solvents and acid-base corrosion. Widely used, with a wide impact and diverse product characteristics. Applied in industries such as chemical, fertilizer, food, minerals, building materials, rubber and plastic.