... density polyethylene (LDPE),high density polyethylene (HDPE)and linear low . Three layer Coextruded(rotating Haul-off)Water-cool Blown Film Lines ... volume, up and down with cylinder, with air shaft, with adjustable speed motor to change speed, use the moment of force ... , length cutting equipment, cooling water discharge, nip rolls, etc.three layers co-extrusion blown film machine is according to market ...