Recently, some distributors of our company (especially Shanghai Lunjie Electrical and Mechanical Instrument Co., Ltd.) have stolen the Digital Viscometer pictures from our company's website to publicize their products. Intellectual property rights have been violated. Damaged our company's "nun run" brand credibility. Our company is a professional manufacturer of Digital Viscometer in China. We can provide users with the original patents for inventions of digital viscometers and the testing reports provided by Shanghai Municipal Bureau of Quality and Technical Supervision. Our product is guaranteed for two years.

Please note: whether the purchase of actual product samples and website product pictures are consistent, and whether the service personnel are professional. Purchase "Nirun" brand viscometer, the quality is guaranteed, users encounter technical problems in measurement, we have professional technicians to guide the correct use. Users are requested to identify "nun run" brand.