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We are metal finishing specialist and are capable of processing a variety of metals and like materials. Please see our materials page for a more comprehensive list of materials that we can finish.
Quality and Service Our Customers Rely On

In 1968 Tri-Process Company incorporated and began Shot Peening first commercially then later for Prime Aerospace. Soon after we expanded our capability and added Magnetic Particle Inspection as a precursor to Shot Peening. During the early years we also offered Abrasive Cleaning and thus the name "Tri" Process was born. Today we are proud to be one of Southern California's Female Minority Owned Small Businesses serving our industry for over 43 years.

Tri-Process Company was one of the earliest accredited by the National Aerospace Defence Contractors Accreditation Programme (NADCAP) in the 1990's and is currently accredited for Advanced Quality Systems, Shot Peening, Glass Peening, Peen Forming and Magnetic Particle Inspection. We offer Abrasive Cleaning tailored to our customer's requirements.

Our peening process capabilities varies from small parts you can hold in your hand up to 65 feet long to 12 feet wide. Our reputation for excellent Quality and Service is second to none. Please use our services and judge for yourself. We guaranty you will be satisfied.

Approved by:


Please visit our Approvals Page for more information.

We are located at:
7721 Jefferson St
Paramount, CA 90723
(562) 531-7666

Visit our Contact Us Page for more contact information.
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