TY - JOUR AU - Song, Jun-Feng AU - Vorburger, Theodore C2 - Journal of Material Culture DA - 1996-01-01 LA - en M1 - 41 PB - Journal of Material Culture PY - 1996 TI - Standard Grade Rockwell Diamond Indenters - A Key to a Worldwide Unified Rockwell Hardness Scale (in Japanese) ER -