Electrodes machining & EDM processing 

The Electrical Discharge Machining Machine(EDM for short) is a kind of mechanical processing machines mainly used for electrical discharge machining. Widely used in the manufacturing of various metal molds and mechanical equipment, it is a special processing method for removing conductive materials by electro-erosion caused by pulse discharges between two electrodes immersed in a working fluid, which is also called spark machining or spark eroding.
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