19 Years Factory cnc machining turning precision parts 02 to South Korea Factories
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A brass block is shown solid on all sides. Then the brass block is wrap up with a piece of paper. A big safety pin is push through from the top all the way down passing the paper and the brass block. When the paper is unwrapped, the solid brass block is handed out to the spectators to examine there is no hole in the brass block at all.
5-axis simultaneous milling of advanced aerospace component