... HDPE)and linear low . Three layer Coextruded(rotating Haul-off)Water-cool Blown Film Lines Performance and Characteristics: It is used ... , hard-surface gear box, with auto oil pump, and water cooling.There are two die heads, one air ring and two ... function equipment parts: remember length equipment, length cutting equipment, cooling water discharge, nip rolls, etc.three layers co-extrusion blown film ...