superfinishing,polishing, finishing, grinding, burnishing, buffing, furbishing
2014年3月4日星期二
HB-superfinishing technoloy-replace grinding,polishing,rolling,buffing,b...
HB-superfinishing technology,obtain Ra0.1,extend workpieces service life...............
HB-superfinishing technology,obtain Ra0.1,extend workpieces service life...............
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