Nws siv cov ntaub ntawv breathable mesh thiab stainless hlau hlau yeeb nkab. Cov khoom zoo li no yog tshiab thiab xis, cov ntaub npuag breathable yog waterproof thiab fireproof, thiab stainless hlau hlau yeeb nkab yog kho nrog electrophoresis, tiv thaiv xeb thiab tshuaj tsuag xim kom lub neej kev pab cuam ntawm cov khoom.