QalabJirka isku dhejinta oo ka samaysan cimilo iyo iska caabin UV Polymer ama jirka aluminium aluminium ah oo leh xudunta cufan ee polymer. Isku xirka la hagaajin karo oo ka samaysan bir galvanized kulul (FA) ama bir aan daahin (SS).
Astaamaha
Laba-geesood ayaa si toos ah u qabsanaya fiilada gudaha jidhka koonta. Rakibadu uma baahna wax qalab gaar ah oo wakhtiga hawlgalka si aad ah ayaa loo dhimay.