00534nam a2200145 4500 717 717 191122b ||||| |||| 00| 0 eng d 621.92 W523 241 Westbury, Edgar T. Grinding, Lapping and Honing: The Application of Abrasive Processes to Finishing Surfaces to a High Degree of Precision , With Descriptions of Machine from the Operator's Viewpoint 1st ed. Maiden Head Percival [n.d.] 78 p. Grinding and Polishing ddc BK 0 0 ddc 0 621_920000000000000_W523 0 2805 CL CL 1952-10-10 621.92 W523 00162 2019-11-22 BK