Valve Bag Woven Bag Putty Powder Mortar Concrete Color Printing Customization

Valve bags are mainly made of PP (polypropylene), PE (polyethylene), paper-plastic composite, kraft paper, etc. The bottom is square and the bag body can stand on its own, which is convenient for filling. Valve bags are divided into two types: upper opening and lower opening. The bag mouth is equipped with a valve structure, which can be filled with materials through a filling machine. It has the characteristics of convenient operation, high-strength structure, and good stacking performance. It supports customization according to drawings.