Multi-layer films particularly suited for packaging applications, including a core layer, a tie layer made from at least 10 wt % of a first polymer and a service layer, wherein the tie layer is a sealable layer and may provide a hermetic seal when sealed to itself. A base assembly aligns the belt, belt fasteners and rivet holes thereof with swage structures for securing the rivets. The first supporting arm is pivotally connected to the tray at one end having a first toothed portion. The driver supplies a molding resin into the cavity based on centrifugal force generated when the rotator rotates on the rotating axis.