関根鉄工所 Company Profile

Professionals in medium and large-scale machining, prototyping, and single-item processing.

Sekine Iron Works Co., Ltd. is a manufacturer that performs machining regardless of shape. We mainly produce a variety of small quantities of parts used in the energy sector (thermal, hydro, wind, nuclear, etc.) and construction machinery, as well as single-item processing and prototype machining, and we are supported by a wide range of customers from various industries. Founded in 1941 as a precision machining manufacturer, we handle the production and machining of parts ranging from small items to large items, including square, round, long, multi-split, and welded can products. We hope to play a part in shaping your ideas into tangible products.