Gas kalma ce ta gaba ɗaya don iskar gas mai ƙonewa da fitar da zafi don amfani da mazauna birane da masana'antu.Akwai nau'ikan iskar gas da yawa, galibi iskar gas, gas ɗin wucin gadi, iskar gas mai ruwa da gas.Akwai nau'ikan iskar gas na gari guda 4: Gas na Gas, Gas na Artificial, Liquefied ...
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