【What is Kojima Seisakusho Co., Ltd.?】 Kojima Seisakusho Co., Ltd. is a manufacturer that develops and produces drainage equipment for buildings (such as drainage pipes and fixtures). In buildings like houses, apartments, hospitals, schools, and public facilities, systems are essential to safely drain water from toilets, kitchens, and washrooms. Kojima Seisakusho supports a comfortable water environment by developing and manufacturing equipment such as drainage joints and systems. While drainag...