Kodi mungasiyanitse bwanji zingwe zabwino ndi zoyipa za fiber optic?
1. Chigoba Chakunja: 1. Chigoba chakunja cha zingwe zowunikira zamkati nthawi zambiri chimapangidwa ndi polyvinyl chloride (PVC), polyethylene, kapena polyurethane yoletsa moto (LSZH). Chigoba chakunja ndi chosalala, chonyezimira, chosinthasintha, komanso chosavuta kuchotsa...
tsatanetsatane wa mawonekedwe