A.0.20,0.30 B.0.30,0.50 C.0.50,0.70 D.0.20,0.50
A.>2mm/min B.≤2mm/min C.>3mm/min D.>5mm/min
A.70mm×(35~40)mm B.70mm×25mm C.40mm×25mm D.45mm×25mm