Since establishing our company in 1959, we have been researching and developing all aspects of plant piping.  However, Ryoko Sangyo is not simply a wholesale piping company; we have been continuously expanding our company as a trade company that is both financially profitable and well respected in the business community. Our business includes everything from sales of piping material and machinery to designing, producing, storing, and dispatching parts from our warehouse. As you can see, our business covers all aspects of plant piping.

Our solid foundation is based on our 50-year relationship with blue chip corporations and a management philosophy that contributes to society through personal development. We are prospering alongside Japanese industry toward a bright and promising future. We continue to make efforts to support your corporate activities, not only with high-quality, low-cost, and on-time delivery, but also through expanding technological development and proposing better solutions. We look forward to building further trust and strengthening our relationship with you.