Four Side Sealing Powder Packing Machine 1.Suitable for packing Loose, non sticky powder material 2.widely used in Pharmacy PR-SPF-350DFour Side Sealing Powder Packing Machine Feature:1) Two-step roller four-side sealing, continuous running not only fast in speed, stable in running, low in noise, but also firm in sealing, reliable in airtight, with bags coming smoothly and fine, high in packing ...