1- The die head is layer type spiral mandrel, continuous 360 degree rotation.

2- Screen pack changer design is rational convenience, reliable, safe in operation.

3- Various functional parts maybe installed to the lies, such as length counting device, vertical cutting device, cooling water row pipe, film spreading roller, scrap collecting device.

The lines are designed developed by our corporation according to market need, they reach the advanced ldvels in the 90s, come up with analogous lives in domestic, it is optimum designed on the trends of preference of analogous lines in foreign and domestic.The lines can be blown contrnuous 1200/1300/1500mm in fold width 0.08mm in the thickness packaging film, from LDPE,HDPE,LLDPE,MLLDPE, by horizontal extrusion up blown, the film has good insulation, for instance holding temperature,anti-rain, anti-rorst, insulation oxygen, oil resistive, and so used for ling and heavy-duty packaging , for example fresh fruits, meat-feeding, salt vegetables, fresh milk, drink etc.