Featuring a dual-layer paper-plastic composite structure with a built-in filling valve on the side, these bags eliminate the need for open-mouth filling and are compatible with automated filling equipment, providing excellent sealing performance. The inner woven fabric layer locks in the material and prevents powder leakage, while the outer kraft paper layer is wear-resistant, stain-resistant, moisture-proof, and dust-proof. The bags automatically take shape after filling, stacking neatly and securely without tipping over. They are suitable for packaging ultra-fine powders such as cement, putty powder, chemical powders, and fertilizers, significantly reducing material loss.
