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Sichuan Qingjiang Machinery Co., Ltd. – A national high-tech enterprise established in 1994 specializing in vegetable oil processing equipment. Their products include electrically heated screw oil presses, cold-press screw oil presses, hydraulic oil presses, household oil presses, and various series of oil expellers. Also produces oil press accessories and filters. Located in Ya'an City, Sichuan Province. Holds 62 patents. Website: http://www.qingjiang.com.cn
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Hubei Yongxiang Grain Machinery Co., Ltd. – A leading manufacturer of grain processing machinery. Their product line includes oil processing equipment for various oilseed materials. Located in Anlu City, Hubei Province. Website: http://www.hbyxlj.com
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Hunan Chenzhou Grain Machinery Co., Ltd. – Established in 1967, a professional manufacturer of grain and oil processing equipment. Their products serve the edible oil industry. Website: http://www.chenliangji.com
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Shandong Swan Cotton Industrial Machinery Stock Co., Ltd. – Founded in 1946, producing agricultural machinery including oil processing equipment for cottonseed and other oil materials. Exports to approximately 30 countries. Website: http://www.sdmj.com.cn/
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Weichai Lovol Intelligent Agricultural Technology Co., Ltd. – A leading Chinese agricultural machinery manufacturer offering comprehensive farm equipment including grain and oil processing machinery. Website: https://www.lovol.com