... for chemical (like PVC)bags, cement bag, and foodstuffs bag. Features:YGZD serial PAPER AND CLOTH Bag Making Machine or bag forming machine is for making central-sealed tubes ... , mid-sealing, cutting, and stacking. The bag can be mid-sealing & gusset bag, no gusset bag, flat open bag, valve mouth bag (option:economic cutting).The machine adopts several ...