1. Babban bambancin zafi-tsoma galvanizing shine narke sinadarin a cikin yanayin ruwa, sannan a nutsar da substrate da za a ɗora, don sinadarin ya samar da wani ɓoyayyen ɓoyayyiyar ƙasa tare da abin da za a saka, don alaƙar tana da ƙarfi sosai, kuma babu ƙazanta ko lahani da ya rage a tsakiyar ...
Kara karantawa