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Working principle of pearl cotton net cover machine: extrude Du unit of plastic foam net, add various chemical raw materials such as resin into the material barrel through hopper, heat them up, inject foam gas into the material barrel, mix them with the material barrel, extrude and cool them from the die head, input them into the tractor, cut them automatically to produce Dao sets of different specifications of foam net, or produce them by changing the machine head and die Different specifications of foam rod, foam tube and other products, the adjustment of formula can produce different color and quality of plastic foam products.If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076.