With the accelerated spread of overseas epidemics, China's masks, thermometers and other materials have entered the high-speed export stage. Since April, enterprises exporting epidemic prevention materials must provide written or electronic statements when declaring to the customs, promising that the exported products have obtained the registration certificate of medical devices in China and meet the quality standards of the importing country. In case of any quality problem in the export of medical materials, we will carefully investigate, investigate and deal with one case, and punish according to law.what is hosting on 美国版抖音,free 美国版抖音 like