Abstract: An oil-cooling tube comprises a set of aluminum-alloy hollow inner and outer tubes with a heat sink having multiple heat-dissipating pores disposed thereon laminated there-between. Via tube-expanding process, the inner tube is integrally bonded with the outer tube and the heat sink to form a lighter-weight oil cooling tube. Aluminum-alloy screw seats can have welding-joint portions respectively brazed to bores drilled at upper end sections of the outer tube to communicate hollow coupling ends with the bores, forming a set of oil-inlet and oil-outlet vents to which a set of oil-inlet and oil-outlet ducts are fluidly connected. The end caps, having ringed sections to be brazed to the conjoining end edges of the inner and outer tubes, can seal and enclose the inner and outer tubes to form an oil-reflux circuit therein, completing the oil-cooling tube with heat-dissipating capability to reduce the processing steps and the cost of material thereby.

Abstract: A cargo sealing-package apparatus comprises a larger plastic film coated with a layer of adhesive and an appropriate-thick paper base board, both larger than a cargo, and cushion elements with elasticity are adapted to protrusions extending from the cargo. The cargo is first placed flat onto the base board and, together, moved to a conveying platform of a preparation area (a cargo-feeding zone) to be transported into a working area (a vacuum-molding zone) and lifted upwards via an ascending/descending machine into a vacuum-heating area, bringing up air to inflate the plastic film undergoing pre-heating operation. Then, the air is drawn out to thermo-seal the plastic film around the shape of the cargo and adhere it in vacuum-binding onto the surface of the base board. Finally, the cargo accurately bound in a vacuum space is moved to a cargo-outlet area, achieving the benefits of anti-shock, humid-proof, dustproof, and anti-oxidized functions thereby.