Habka gaarka ah iyo faa'iidooyinka sifada:
1. Dusha sare waa galvanized, leh dhalaal sare, muuqaal qurux badan, iyo iska caabin xoog leh oo daxalka ah (hababka daaweynta dusha ikhtiyaarka ah sida plating zinc cad, plating zinc midabka, fosfat madow, fosfat cawl, iyo dajinta nikkel).
2. Carburized iyo xanaaq, adkaanta dusha sare waa mid sare, taas oo gaari karta ama dhaafi karta qiimaha caadiga ah.
3. Tiknoolajiyada horumarsan, wareeg yar oo qalloocan iyo waxqabadka sare ee quful.