单项选择题
A.热室压铸机B.冷室压铸机C.立式压铸机D.冷室卧式压铸机
A.1~2mmB.2~6mmC.6~10mmD.10~15mm
A.0.02~0.08sB.0.2~0.4sC.0.4~0.6sD.0.6~1s