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開封市思瑞特機械廠（開封朗瑞機械有限公司）是專業生產堅果炒貨機械、干燥設備的廠家，堅果炒貨協會副會長單位，執筆編寫中國輕工業部堅果食品干燥設備及堅果食品炒制設備的行業標準。2001年以前主要從事煙草機械烘干、制絲、粉碎、除塵等設備的研發生產，與西安船舶制造有限公司（軍工企業）、宜昌 7 1 5 所（軍工企業）同為國家3個定點廠。擁有2萬平方米的標準廠房。二十多年來一直從事堅果炒貨設備、干燥設備、煙草機械的研究開發及設計制造，多項科研項目填補國內空白，通過國家級鑒定，并獲得十幾項專利。達到國際領先水平，形成具有自主知識產權的核心技術。特別是全自動連續炒制設備的研發成功，徹底改變了炒貨行業人工和半自動炒制的歷史。獨特的熱風循環方式使帶式干燥機的干燥均勻度得到很大提高，并有效地節能降耗。研發成功了多種具有行業里程碑式的堅果食品生產設備。
Kaifeng Siruite Machinery Factory (Kaifeng Langrui Machinery Co., Ltd.) is a professional manufacturer of Roasting Equipment and Belt Dryer for Nuts and Roasted Seeds. It’s a Vice Chairman uint of Nuts and Roasted Seeds Association, We edited Chinese Ministry of Light Industry standard for nuts food drying equipment & roasting equipment. Before 2001, It was mainly engaged in the R&D and production of tobacco machinery for drying, silk making, crushing, dust removal and other equipment. It was one of three national designated factory with Xi'an Shipbuilding Co., Ltd. (military enterprise) and Yichang 715 (military enterprise). It has a standard factory building of 20,000 square meters. It has been engaged in the research and development, design and manufacture of nuts and roasted seeds Rosting Machinery & Belt Dryer & tobacco machinery for more than 20 years. Many research projects fill in the empty in our country & got national identification & won national patents. It has reached the international leading level and has core technology with independent intellectual property rights. In particular, the successful development of fully automatic continuous Roasting equipment has completely changed the history of manual and semi-automatic Roasting in the roasted industry. The unique hot air circulation greatly improves the drying uniformity of the belt dryer and effectively saves energy and reduces consumption. It has successfully developed a variety of nut foods equipment with industry milestones.
The Vice Chairman of The Specialized Committee for Nuts and Roasted Seeds of China National Food Industry Association.
Formulated the standard of China light industry of drying equipment and roasting equipment for Nuts & Roasted Seeds.
High-tech enterprise was awarded by Henan Science & Technology Department.
Responsible Unit of Equipment Working Group in Specialized Committee for Nuts and Roasted Seeds of China National Food Industry Association.
During 2005 to 2016 , We have a great contribution in Chinese Nuts and Roasted Seeds Industry.
Voted as one of the top 10 enterprises of providing high-quality services in Chinese Nuts and Roasted Seeds Industry for 12 years.
Many research projects fill in the empty in our country & got national identification.
Winning the title of the Top 10 innovative enterprises (energy-saving and environmental protection equipment) in Chinese Nuts and Roasted Seeds Industry.