A.鎢鈷類 B.鎢鈦類 C.鎢鈦鈷類 D.鈦鉆類
A.0.01-0.02 B.0.01-0.04 C.0.02-0.04 D.0.01-0.04
A.0.005 B.0.010 C.0.015 D.0.020