日本工业标准_JIS B4214-2009 Milling cutters-Shell end mills with plain bore and tenon drive(Amendment 1)_B 42142009 1 ?QUV w4x|j=OH 14 t?loj;b?H 12 H 1 wFt,nV|jj?o?F?Yb?VqwZUK?|?j*qw?&o|&A?GUYh?wp|?t?lo| JIS B 4214:1998 xY?|U?VQ?h ?F JIS B 4214 2009 41 Milling cutters-Shell end mills with plain bore and tenon drive Amendment 1 JIS B 4214:1998 ?|w?OtYb? 2.;Fw JIS B 0205