Mphepete mwachitsulo, yomwe imadziwika kuti ngodya chitsulo, ndi ya carbon structural steel pomanga, yomwe ndi chitsulo chosavuta, chomwe chimagwiritsidwa ntchito pazinthu zazitsulo ndi mafelemu a msonkhano. Kuwotcherera kwabwino, magwiridwe antchito apulasitiki ndi mphamvu zina zamakina zimafunikira pakugwiritsa ntchito. Msuzi wakuda...
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