واجب ثقيل مزدوج نهاية الركيزة طحن سعر الجهاز
مراكز بالقطع الأفقي Numerical control Wikipedia Numerical control also computer numerical control and commonly called CNC is the automated control of machining tools such as drills lathes mills and 3D printers by means of a CNC machine processes a piece of material metal plastic ceramic or composite to meet specifications by following a coded programmed