The results of a study to improve sound-proofing in a 40MT gorging hammer
40MT鍛造ハンマーの防音対策とその効果

Y. Yakata
1998 SANGYO EISEIGAKU ZASSHI  
doi:10.1539/sangyoeisei.kj00001990128 fatcat:j6djipl5ovajreecikbq7rqmfm