In 1961, Roy Henn and his sons set out to service the plastics industry by building premium custom mold bases. It wasn't long before they began to learn the finer points of building, what many customers refer to as, the best custom mold bases available in the market.

In just a few short years the words EDRO Engineering became synonymous with top quality mold bases in California. Soon, the "EDRO family" grew to include an impressive team of skilled craftsmen and knowledgeable technicians that pride themselves on producing a first rate job. This reputation soon propelled EDRO into the upper ranks of nationally recognized plastics tooling specialists.

Among the first to install CNC equipment EDRO continues to lead the industry by pioneering the latest in emerging technology.

After years of building premium mold bases, EDRO recognized the need for improved mold steels.

In 1985, EDRO Specialty Steels was established with one prevailing goal: to develop, manufacture and distribute new and improved steels engineered for plastics tooling. Assembling a team of industry professionals and metallurgical experts, EDRO now offers a comprehensive line of premium holder block, and insert grades,for various tooling applications.

EDRO has recently expanded its business to an international scale. In addition to production and distribution facilities in Pennsylvania and California, which service North America, EDRO also produces and distributes specialty steels in Europe.

The EDRO team constantly strives to produce the highest quality in specialty steels, and custom mold bases, ensuring EDRO will remain one of the leading companies in the plastics tooling industry.