GJYFJH - Tight buffered fibers yog ib puag ncig nrog ib txheej ntawm aramid yarns ua tus tswv cuab lub zog. Lub LSZH puab sheath yog extruded rau ntawm lub nruj buffered fiber ntau los tsim ib tug optical sub-unit. Tom qab ntawd optical sub-units thiab fillers raug tso tseg rau hauv cov tub ntxhais cable. Thaum kawg, LSZH sheath yog extruded sab nraum lub hauv paus. Cov fillers tuaj yeem ua los ntawm lwm cov xov paj muaj zog thiab lwm cov ntaub ntawv sheath muaj nyob rau ntawm kev thov.