¨ä½u±øºc¦¨·¥¨ã²{¥N·PªºÂ²¬ù­·®æ¡A¤M¤b¬°440¤£ù׿û§÷½è¡AÁá¥H¶Â¦âªº»ÄÆP§Ü»G»k±j´á¤ÆÜg¡Aµw«×°ª¹F58-60HRC¡C