01SWWeihai, Shandong · HUMAN-REVIEWED PUBLIC SOURCESShandong Weida Machinery Co., Ltd.
A listed precision-manufacturing group whose official catalogue includes drill chucks, powder-metallurgy parts, precision castings and power-tool switches. Product families may be made by different subsidiaries, so the actual manufacturing entity must be confirmed at model level.
drill chuckspowder-metallurgy partsprecision castingspower-tool switches
1 evidence items · Updated 01 Sep 2026 02XGXiamen, Fujian · HUMAN-REVIEWED PUBLIC SOURCESXiamen Golden Egret Special Alloy Co., Ltd.
A tungsten-material and cutting-tool manufacturer founded in 1989 and identified by its official site as a core member of listed Xiamen Tungsten. Its public scope spans tungsten powders, cemented carbide, precision cutting tools and application solutions across several production bases.
tungsten powderscemented carbide rodsindexable insertssolid carbide cutting tools
1 evidence items · Updated 01 Sep 2026 03XSChina · exact location under review · DISCOVERY CANDIDATE · REVIEW PENDINGXi'an Sifang CNC Cutting Tools Co., Ltd.
Subsidiary of Shaanxi Nonferrous Metals Group, manufacturing carbide end mills, face mills, shell mills, and turning tools. Emphasizes R&D for high-efficiency milling in aluminum, steel, and titanium alloys. Supplies domestic heavy machinery and rail transit sectors.
carbide end millsface millsshell millsturning tools
1 evidence items · Updated 01 Sep 2026 04HSChina · exact location under review · DISCOVERY CANDIDATE · REVIEW PENDINGHenan SFD Superhard Material Co., Ltd.
Publicly listed producer of polycrystalline diamond (PCD) and cubic boron nitride (CBN) compacts, inserts, and grinding wheels for precision machining of non-ferrous metals, composites, and hardened steels.
PCD grinding wheelsCBN grinding wheelsPCD insertsCBN compacts
1 evidence items · Updated 01 Sep 2026 05CCChina · exact location under review · DISCOVERY CANDIDATE · REVIEW PENDINGChongqing Changjiang Bearing Co., Ltd.
State-invested manufacturer of needle roller bearings, cam followers, and linear bushings for automotive chassis, motorcycles, and agricultural machinery. Certified under IATF 16949 and ISO 14001. Features proprietary sintering and heat treatment processes for high-density components.
needle roller bearingscam followerslinear bushingsautomotive chassis bearings
1 evidence items · Updated 01 Sep 2026