BEIJING -- As a global shortage of masks, test kits and other medical equipment draws a flood of new manufacturers into the field, China has toughened restrictions to weed out unreliable suppliers and products.
Coronavirus
Bad masks: China clamps down on suppliers after European outcry
28,000-plus companies have entered the sector amid booming demand
A mask factory in Shanghai: more than 28,000 new players have begun producing medical equipment in China, but not all have the right know-how. © Reuters
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