... motor Dual-layer Die Head Stretch film making machine for hdpe+ldpe, Flat film extrusion line,film blowing machinery Main Technical1. Screw ... 2. Even shearing and mix melting could make the plastic fully plasticized, meantime, thefilm's horizontal and vertical pulling ... advantaged feature. Dual-layer Die Head Stretch film making machine for hdpe+ldpe, Flat film extrusion line,film blowing machinery