Heiwa Sangyo Co., Ltd. has been manufacturing and selling oil-impregnated bearings for micro motors (trademark name: Peace Ron) and sintered mechanical parts since its establishment in 1961. Peace Ron is used in various devices around our daily lives. The manufacturing method of Peace Ron, which is powder metallurgy technology, involves compressing and injection molding metal powder, then sintering it in a high-temperature furnace. This technique minimizes waste in materials and supports the development of a sustainable society.