Zhejiang UERT Testing Technology Co., Ltd founded in 1983, was originally a state-owned enterprise and restructured into a joint-stock company in 2006. It is a professional manufacturer of non-destructive testing (NDT) equipment integrating scientific research, production and trade.

As the developer of China’s first linear image quality indicator and the first ASME standard hole-type image quality indicator, the company has passed the appraisal of the Zhejiang Provincial Science and Technology Commission, and has successively won the honorary titles of National Advanced Collective Unit and Zhejiang Provincial Science and Technology Progress Award.

The independently developed first "twin-wire image quality indicator" in China has passed expert appraisal. Its R&D level has reached the international leading standard, filling the gap of domestic twin-wire image quality indicator production. At present, only two manufacturers worldwide are capable of producing the D15 twin-wire image quality indicator.