- A.既有衬垫,又有压板
- B.只有衬垫,而无压板
- C.没有衬垫,只有压板
- D.既无衬垫,又无压板
- A.2级
- B.3级
- C.4级
- D.5级
- A.Tab
- B.Alt
- C.Shift
- D.Ctrl
- A.285mm
- B.315mm
- C.590mm
- D.710mm
- A.1230mm
- B.1250mm
- C.1550mm
- D.1530mm
- A.360mm
- B.510mm
- C.540mm
- D.380mm
- A.1000m
- B.1200m
- C.600m
- D.800m
- A.硬横梁铝包钢型绞线
- B.硬横梁钢绞线
- C.硬横梁铜绞线
- D.硬横梁钢芯铝绞线
- A.745mm
- B.900mm
- C.1000mm
- D.1200mm
- A.100mm
- B.400mm
- C.150mm
- D.300mm