Mark Ford, manajan ci gaban ƙirƙira a AFG Industries, Inc., ya yi bayani: Gilashin zafin jiki kusan sau huɗu ya fi ƙarfin “talakawa,” ko annealed, gilashi. Kuma ba kamar gilashin da ba a rufe ba, wanda zai iya tarwatsewa cikin tarkace lokacin da ya karye, gilashin mai zafi ...
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