Cov thawv sib txuas ntawm cov khoom sib txawv tsis haum rau kev sib xyaw.Piv txwv li, cov ntaub ntawv hlau yog grounded, fireproof, thiab hardness yog zoo dua.PVC thiab lwm yam ntaub ntawv muaj kev rwb thaiv tsev zoo dua.
Hauv kev siv, nws tsis tsim nyog los rhuav tshem cov qauv ntawm lub cassette.Kev puas tsuaj ntawm cov qauv yuav yooj yim ua rau lub deformation ntawm lub thawv thaum nws yog embedded, uas tej zaum yuav adversely cuam tshuam lub installation ntawm lub vaj huam sib luag.
Nyob rau tib lub sijhawm, thaum hnav cov yeeb nkab thiab threading, xyuam xim rau qhov tshwj xeeb ntawm lub cassette kom puas cov hlau.
Post lub sij hawm: Jul-21-2018