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Graybar Diamond Bar is a sales office. Graybar is a leading distributor of electrical supplies, communications, data network solutions, commercial and industrial lighting, and security equipment.

Impro Industries USA, Inc., located in Diamond Bar, CA, is a leading one-stop solution provider specializing in high-precision manufacturing across various industries, including automotive, aerospace, medical, and energy. The company offers a comprehensive range of services, including investment casting, sand casting, and precision machining, to meet the evolving needs of its diverse clientele. With a focus on delivering mission-critical components, Impro's capabilities encompass everything from tooling design and manufacturing to heat treatment and surface treatment, ensuring high-quality products that adhere to stringent industry standards. The expansion of their operations into Mexico further enhances their ability to provide integrated solutions and respond effectively to global supply chain challenges. Generated from the website