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开封市思瑞特机械厂（开封朗瑞机械有限公司）是专业生产坚果炒货机械、干燥设备的厂家，坚果炒货协会副会长单位，执笔编写中国轻工业部坚果食品干燥设备及坚果食品炒制设备的行业标准。2001年以前主要从事烟草机械烘干、制丝、粉碎、除尘等设备的研发生产，与西安船舶制造有限公司（军工企业）、宜昌 7 1 5 所（军工企业）同为国家3个定点厂。拥有2万平方米的标准厂房。二十多年来一直从事坚果炒货设备、干燥设备、烟草机械的研究开发及设计制造，多项科研项目填补国内空白，通过国家级鉴定，并获得十几项专利。达到国际领先水平，形成具有自主知识产权的核心技术。特别是全自动连续炒制设备的研发成功，彻底改变了炒货行业人工和半自动炒制的历史。独特的热风循环方式使带式干燥机的干燥均匀度得到很大提高，并有效地节能降耗。研发成功了多种具有行业里程碑式的坚果食品生产设备。
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.