A total of 2.58 million cases of novel coronavirus infection and 178,000 deaths worldwide were reported as of 2:38 PM, Beijing time, according to real-time statistics from Johns Hopkins university.US President Donald trump says the epidemic is improving in the US.More than 20,000 cases have been confirmed in India, but not yet peaking;Countries in Africa extend city closures.

In the case of severe epidemic, the quality of the mask is generally concerned. If the tension of the mask strape is not enough, the separation of the two layers of mask fabric will result in the failure to achieve the function of the mask. The tension test machine  of our company can well solve the problem of detecting the quality of the mask