... food, medicine and chemical2.FEATURES: Sealing type :Back-side sealFilling method:by screwAll the works of bag-making,measring,filling,sealing,cutting ... ,Paper/Polyethylene,Polester/Plated alumnium/Polyethylene,Nylon/CPP ETC.4.TECHNICAL DATA: BAG SIZEW:30-140 mmL: 30-180 mmCAPACITY30-60 ...