Zulu Nylon Strap is Very popular “Classic Bond” North Atlantic Treaty Organization Watch Strap. https://www.adband.org/products/zulu-straps/zulu-nylon-strap-nato-strap-china.html
By CNC milling in the back plate to form a custom flow channel, the flow channel is arranged with fins, using friction stir welding welded seal, especially suitable for high pressure conditions, high power density environment. The welding strength of the friction stir welding water cooled plate is equivalent to more than 90% of the base material, and the pressure is 10bar~30bar, or even higher.