Ooka Seisakusho Co., Ltd. is a specialized manufacturing firm established in 1980 that provides precision metal processing services. The company specializes in lathe and machining operations for components ranging from 30mm to 1050mm in diameter, with a focus on producing large-scale bearings, manhole covers, and seismic-resistant water supply fittings. They are recognized for their technical proficiency in handling thin-walled, large-diameter, and complex-shaped workpieces. Utilizing advanced machinery, the company maintains efficient production workflows and is capable of accommodating short-lead time requirements. Their services support infrastructure, public utility projects, and industrial manufacturing sectors.

Mino Seisakusho is a Japanese manufacturing firm established in 1964, specializing in precision metal cutting and machining services. The company offers integrated NC turning and machining center capabilities to produce both round and complex parts. They serve a wide range of production requirements, ranging from small-lot runs to high-volume manufacturing. Their facility is equipped with advanced 3D CAD/CAM technology, allowing for precise engineering and support for various file formats including IGES and Parasolid. With a focus on quality and versatility, they provide comprehensive machining solutions for a diverse range of metal materials.

Chuno Seisakusho is a precision metal manufacturing company based in Minokamo City, Gifu, Japan. The company specializes in laser cutting, metal pressing, sheet metal fabrication, and welding services, delivering high-precision components with tolerances as low as ±0.1mm. They serve a diverse range of industries including architecture, civil engineering, medical, and electrical distribution. Known for a client-focused approach, the firm handles custom, small-lot production and offers integrated project management from CAD design through to final processing. Their manufacturing facility emphasizes short lead times, responsive customer service, and technical expertise in complex and intricate metalwork.