A.94% B.95% C.96% D.91%
A.硅 B.錳 C.釩 D.鐵
A.閃光速度 B.頂鍛速度 C.頂鍛壓力 D.變壓器級數(shù)
A.94% B.93% C.92% D.91%
A.速凝 B.初凝 C.終凝 D.促凝
A.2 B.3 C.4 D.5
A.4~8mm B.6~10mm C.4~10mm D.6~12mm