日本工业标准_JIS B4351-2009 Straight Bevel Gear Generating Cutters (Type G)(Amendment 1)_B 43512009 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 4351:1985 xY?|U?VQ?h ?F? JIS B 4351 2009bYy;G 41 Straight bevel gear generating cutters Type G Amendment 1 JIS B 4351:1985 ?|w?OtYb? ;Fw JIS B 0251