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History of drag chain
In 1953, Professor Dr Gilbert waninger of Germany invented the world's first steel drag chain. Dr Waldrich, the holder of kabelschlepp jiabora, believes that drag chain is...Read more -
Research on control strategy of high performance CNC system based on open structure
Research on control strategy of high performance CNC system based on open architecture Wang Junping, Fan Wen, Wang An, Jing Zhongliang 3 710072, 1 Xi'an: T: college, Xi'an...Read more