... machine,plastic film machine,blown film machine,Two-Color Film machine,stripe film machine Two-Color Striped Film machine,film machine,plastic film ... cylinder ate made of 38CrMoAl high quality alloy steel after fine finishing and nitrided treatment, which has high hardness,strong ... with even and smooth discharging, the blownplastic film has fine finishing ,the blower is of labyrinth structure with even ...