Weihong Chen
·Patents
一种口罩过滤性能测试装置及方法
Release time:2021-10-19 Hits:
Type of Patent: Invent
Authorization number: CN 109781608B
Number of Inventors: 3
Authorization Date: 2021-06-05
Type of Patent: Invent
Authorization number: CN 109781608B
Number of Inventors: 3
Authorization Date: 2021-06-05