单项选择题
A.68#抗磨液压油 B.32#变压油 C.L-CKD320 D.L-CKD220
灰石秤皮带的型号是（）A.800X1200MMB.800X5500MMC.100X120MMD.120X100...
单项选择题灰石秤皮带的型号是（）
A.800X1200MM B.800X5500MM C.100X120MM D.120X100MM
矿渣库大概到多少米时就断料了（）A.15B.20C.10D.12
单项选择题矿渣库大概到多少米时就断料了（）
A.15 B.20 C.10 D.12
矿渣库高、宽（）米。A.8X18.2MB.10X12.5MC.8X15.7MD.12X12.5M
单项选择题矿渣库高、宽（）米。
A.8X18.2M B.10X12.5M C.8X15.7M D.12X12.5M
