单项选择题
(A)内卡钳; (B)外卡钳; (C)钢板尺; (D)内卡钳和钢板尺
平直钢尺的规格有()(A)150mm,300mm两种;(B)120mm,200mm两种;(C)150mm,30...
单项选择题平直钢尺的规格有()
(A)150mm,300mm两种; (B)120mm,200mm两种; (C)150mm,300mm,500mm三种; (D)150mm,300mm,500mm,l000mm四种
4型管子割刀切割的管径为()(A)10~25mm;(B)12~5mm;(C)25~80mm;(D)50~100...
单项选择题4型管子割刀切割的管径为()
(A)10~25mm; (B)12~5mm; (C)25~80mm; (D)50~100mm
3型管子割刀切割的管径为()(A)10~25mm;(B)12~50mm(C)25~80mm(D)50~100m...
单项选择题3型管子割刀切割的管径为()
(A)10~25mm; (B)12~50mm (C)25~80mm (D)50~100mm