Certificated quality | Qingdao Junray ZR-1006 ndiyo masiki particulate filtration kunyatsoita tester iyo yese parameter inokodzera.
Muna Chikunguru 2020, chigadzirwa chenyeredzi, ZR-1006 Mask Particulate Filtration Efficiency uye Mhepo inoyerera Resistance Tester Chigadzirwa Nhanganyaya Iyo ZR-1006 mask particle filtration kunyatsoshanda uye airflow resis...