LETOU（股票代码430602）是研制、开发和生产LETOU SITE及其相关产品的高新技术企业（LETOU SITE厂家）。公司长期致力于密封与磨擦技术的研究，在LETOU SITE领域处于国内较前地位。LETOU SITE研发中心已为腾旋公司赢得了312项专利。
Tengxuan Technology Company specializes in research, development and the manufacturing of rotary joints and related products. Tengxuan is also the leading sealing technology and steam syphon expert in China, accumulating 312 technical patents over the years.
Tengxuan has a large machine shop facility, with over 160 state-of-the-art machines. Our products are manufactured to ISO9001 quality management standards. We have our own sales and service staff, assisting customers around the world.
Tengxuan products are widely used in industries such as paper, steel, corrugating, textiles, non-wovens, rubber, plastics, chemical,machine tool, construction machinery and food processing.
Along with our high quality products, we offer our customers the highest level of aftermarket sales and service.