Matsalar gama gari

  • Wankan zinc ko tukunyar tutiya da ake amfani da shi don galvanized zafi yana amfani da ƙaramin ƙarfe ƙarancin ƙarfe tare da ƙaramin abun cikin carbon. Wannan don rage gami da lalata lalata yayin amfani. Idan anyi amfani da kayan tukunyar zinc ba daidai ba, zai rage amfani da tukunyar zinc sosai ...

    2021-03-06

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