Since February 10,it has been 8 days since the resumption of work.How is the progress of various industries around the country?The Pearl River Delta and the Yan
knitting machinery While strengthening the prevention and control of the COVID-19epidemic,enterprises in the knitting machinery industry have resumed production
Starting from July 1,the new standard for KN95 face masks,known as GB 2626-2019,will come into force on compulsory basis with more stringent requirements of res