Guanghan Longrun Technology & Trade Co., Ltd.

Guanghan Longrun Technology & Trade Co., Ltd., established in April 2002, was founded under the planning and guidance of the Sichuan Provincial Science and Technology Commission. It originated from the restructuring of the former state-owned Sichuan Guanghan Superhard Material Factory and has evolved into a technology-based enterprise integrating R&D, customized design, manufacturing, and sales of superhard material wear-resistant tools and rare metal coating technologies.

Longrun Technology & Trade possesses core qualifications and independently developed electroplating technologies, along with the capability to formulate electroplating bath compositions tailored to different product requirements. This has enabled the company to overcome challenges such as stability, durability, arrangement accuracy, and high precision of diamond tools. Currently, the company mass-produces hundreds of types of superhard and specially shaped grinding, drilling, sawing, and cutting tools made from diamond and cubic boron nitride. These include mainstream products such as electroplated diamond grinding wheels, electroplated diamond grinding heads, electroplated diamond drill bits, electroplated diamond needle files, and diamond grinding paste. Additionally, the company manufactures dozens of rare metal surface coating products, with tungstenmolybdenum and tungstentitanium based materials being typical examples.

Our main products

Guanghan Longrun Technology & Trade Co., Ltd. specializes in customizable, high-precision electroplated diamond tools and grinding pastes, backed by proprietary electroplating technology and a dedicated special materials research base.

Diamond grinding paste

A paste composed of high-quality diamond micropowder as the abrasive, mixed with a paste binder, belonging to soft abrasive tools...

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Electroplated Diamond Umbrella-shaped Cutting Tool

The blade body of the cutting disc is umbrella-shaped or trumpet-shaped, expanding outward from the central axis. This design provides a larger working contact area.

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Electroplated Diamond Needle Files

Employing a high-density electroplating process, synthetic diamond particles are firmly locked onto the surface of a 45 steel substrate...

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Electroplated Diamond Honing Reamer

The structure of electroplated diamond honing reamers can be divided into two types:Fixed Type: The cutter body has excellent rigidity. It is easy to regrind.

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Electroplated Diamond Multi-Tooth Special-Shaped Grinding Wheel

Composed of a metal matrix (determining the final shape) and an electroplated working layer (diamond abrasive + nickel/cobalt alloy bond).

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Honors and Qualifications

Guanghan Longrun Technology & Trade Co., Ltd. specializes in the production and sales of diamond tools and processing of general mechanical parts. The company holds multiple certifications, including ISO9001 (Quality Management), ISO14001 (Environmental Management), and ISO45001 (Occupational Health and Safety). It also possesses a Pollutant Discharge Permit and several utility model patents related to diamond tool and coating processing technologies. The company is recognized as a "Best Strategic Partner" for diamond products and operates a "Special Materials Precision Research Experimental Base."