GSP Metal Finishing, Inc.

Aviation and Aerospace Component ManufacturingCalifornia, United States2-10 Employees

GSP Metal Finishing, Inc. is a Nadcap-accredited metal treatment and surface finishing facility that serves the aerospace, defense, medical device, and industrial markets. Based in Gardena, California, the company has been operating since 1973, offering processes for aluminum and titanium parts to MIL and AMS specifications, along with services such as ultrasonic cleaning, chem film conversion, electropolish, passivation, non-destructive inspection, bead blasting, priming and painting, silkscreen, and solid film lubrication. Its operations accommodate parts up to roughly 12.5 feet by 3 feet by 4 feet, supporting customers who require compliant, multi-step surface treatment and finishing for mission-critical applications. The company targets aviation and aerospace components, while also serving broader industrial and defense sectors, positioning itself as a specialized, quality-focused finishing and treatment provider within the industry.

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