Sharax Gaaban:

Cidhifka kore ee madaxa madaxa ee silsiladda madaxa hexagon waa wareegsan tahay, dhexda-na waa mid laba geesood leh, halka booska hexagonal-ka uu yahay midka leh madaxyada lagu maroojiyo ee leh geesaha laba geesoodka ah. Kadib daaweynta dusha galvanizing kulul, saameynta anti-daxalka ayaa la gaadhay.