Pali njira zingapo zoponyera zomwe zikuphatikizapo: Die kuponyera, Aluminium kufa kuponyera, Kuponya ndalama, kuponyera mchenga, Kutaya thovu kuponya, Kutaya sera, Kuponyera kokhazikika kwa nkhungu, Kuponya kwachangu, Kuponya kwapakati kapena rotocasting. Mfundo yogwira ntchito (magawo atatu) Njira yayikulu-CNC Machining kapena ...
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