Lub npog ntsej muag thiab cov khaub ncaws tiv thaiv

Ib tug xov tooj ntawm cov tshuab thiab ntau lawm technologies tau qhia.

Yog tias koj xav tau daim npog ntsej muag (N95 hom, daim npog ntsej muag pov tseg, daim npog ntsej muag phais) thiab cov khaub ncaws tiv thaiv, pls qhia rau peb paub tias peb tuaj yeem muab rau lawv.

 

 

 

 

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Post lub sij hawm: Mar-17-2020