Bushion application: Resinous metal bushings inside PP pipes (polypropylene), which are usually used for hot and cold water supply, have been used in rice so far, which is naturally heavy in weight and expensive and has considerable brittleness. Based on the tests performed, the company intends to use aluminum alloy instead of rice and cover it on a nanostructured scale, which will definitely be more suitable in terms of corrosion resistance, wear and cost.