石政製作所 Company Profile

For mass-produced items, we organize a single-piece flow line to ensure quality.

Ishimasa Manufacturing Co., Ltd. has been engaged in the machining of metal parts for various companies since its establishment in 1947. Currently, we mainly focus on precision machining of automotive-related drive system components. As the business environment becomes increasingly challenging with high precision, high quality, and cost competition, we are united as a team to engage in improvement activities with the theme of "how to increase productivity more efficiently." In line with our management policy, we aim to be a company that our partner manufacturers can trust and work with comfortably. Leveraging over 50 years of accumulated know-how as a machining manufacturer, we are committed to fostering talent and enhancing technology, ensuring that each employee takes initiative while accurately grasping the needs of the new era. Additionally, we aim to respond to internationalization through ISO certification and ensure unwavering trust in quality as a parts manufacturer, striving to be a company that meets our customers' expectations and earns their further trust.