Peb tau cog lus los muab kev yooj yim, txuag sij hawm thiab txuag nyiaj ib-nres kev yuav khoom ntawm cov neeg siv khoom,
Graphited Ptfe Ntim,
Plua plav Dawb Asbestos Ntaub Nrog Aluminium,
Braided Ntim, Tus nqi txhoj puab heev nrog cov khoom zoo tshaj plaws thiab kev txhawb nqa txaus siab ua rau peb tau txais cov neeg siv khoom ntxiv.peb xav ua haujlwm nrog koj thiab thov kom muaj kev txhim kho.
