NORTH KOREA RECTANGULAR FLAT BOTTOM PAPER BAG MAKING MACHINE

Zhejiang Zhuxin Machinery Co.,ltd is willing to cooperate with customers in North Korea to open up the market. We provide high quality Rectangular Flat Bottom Paper Bag Making Machine products, preferential factory prices, and professional after-sales services to provide impetus for the rapid development of your company! BUR (blow up ratio): 2 – 4.5. • DDR (draw down ratio) = gap width/thickness x BuR. • MD (machine direction). • TD (transverse direction). • L/D ratio of screw: 24Jul14, 2016 Page 6 Bubble stability in blown film Integrity of the solid film Film characteristics: ? film thickness ? materials used (stiffness, crystallization rate, Mw or MFI) Machine characteristics: ? output ? die gap ? cooling efficiency ? bubble

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