Zirconium core, ana amfani dashi don bututun ƙarfe.
Babban halayen:
1. Kyakkyawan juriya na lalata, babu bayyananniyar fadada diamita, tsawon rayuwar sabis, babu karkatacciyar kwarara, sabon abu na watsawa;
2. Thermal girgiza yi yana da kyau, aikin anti-fashe yana da kyau;