... iron,brass,bronze,aluminum alloy. Process: machining work on raw parts,including milling,turning, grinding,planing,drilling,threading and hobbing. Application ... accuracy in processing IT01-IT15 Surggace treatment: anti-rust oil coating ,powder,etc.Equipment: milling machine,hobbing machine,drilling &CNC milling ... 3000 mmAccuracy in processing IT01 ~ IT15 Surface: Anti-rust oil coating Machining Parts