At Keystone Tank Manufacturing LLC, our expert team designs and fabricates high-quality pressure vessels and tanks to A.S.M.E ... . standards, ensuring you receive equipment you can trust. Our team designs and manufactures a range of custom vessels and tanks to your specifications, utilizing the most innovative design and fabrication techniques. We take the time to learn exactly what you need. We are capable of engineering virtually any piece of equipment, including pressure vessel tanks for petrochemical, CO2, refrigeration, and ammonia applications. We also hold an ISO certification. We are centrally located in Rhome, Texas, to provide units to the Dallas-Fort Worth metroplex area, the neighboring five state region and even nationwide. read more