China
Tian Suyn Ltd, also known as Shenzhen Tian Suyun Metrology & Testing Co., Ltd., was founded in 2009. The company is a national, comprehensive third-party quality testing and service provider in China. Tian Suyn specializes in the fields of measurement and testing technology, product testing, quality certification, and technology consulting. It offers services such as calibration and testing of measurements, thermometry, mechanics, electromagnetism, radio frequencies, time and frequency measurement, acoustics, optics, chemistry, and radiation protection. The firm is specialized in testing batteries for consumer products, batteries for vehicles, and storage batteries. Tian Suyn has established 22 measurement laboratories and five test equipment in the main cities of China to build a gird-like, digital, and partially decentralized laboratory service network. The company is recognized.
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