txoj hauj lwm:Cov txheej txheem kev txhawb nqa sawb, nruab nrab stranded hlau, txheej stranded hlau, embedded nplhaib, daim duab peb sab sib txuas phaj, txuas kho vajtse (U-zoo li tus dai nplhaib, hloov phaj), cov qauv fasteners, thiab lwm yam.
Lub hom phiaj:Txhawm rau dais qhov nro.Txuas cov fiber ntau hauv av xaim mus rau lub davhlau ya nyob twg, strain-resistant lossis optical cable txuas ntauwd.