nws foob tester tseem hu ua huab cua nruj tester lossis leak tester. Nws yog tsuas yog siv rau ntim hnab, lub raj mis, raj, thiab lwm yam. Sealing xeem ntawm cov kaus poom, thawv, thiab lwm yam.
Kev siv ntau yam:
Nws yog tsuas yog siv rau kev sib khi ntawm cov hnab ntim khoom, lub raj mis, raj, cov kaus poom, thawv, thiab lwm yam, uas yog tsim rau cov khoom noj, tshuaj, khoom siv kho mob thiab lwm yam lag luam. Nws tseem tuaj yeem ua tiav qhov kev soj ntsuam ntawm kev sib khi zoo ntawm lub pob.