丸上製作所 Company Profile

Technology development aimed at a hundred years ahead, along with experienced personnel, will meet all your needs.

Marujou Manufacturing Co., Ltd. has been steadfastly committed to the manufacturing industry since its founding, particularly focusing on "springs" since the post-war period. This dedication has taken various forms and continues to thrive in a variety of scenes today. Our unique technological capabilities and creativity, which look toward the next generation, are constantly building a new era and attracting attention from the spring industry.