A.1500 B.1800 C.2000 D.2200
A.安全生產(chǎn)管理體系 B.安全生產(chǎn)保障體系 C.安全生產(chǎn)規(guī)章制度
A.2 B.3 C.4 D.5
A.31mm B.37mm C.41mm D.36mm
A.明顯變形 B.可見裂紋 C.嚴(yán)重銹蝕 D.潤滑情況
A.1 B.1.2 C.1.3 D.1.5
A.1350 B.1500 C.1650 D.1800
A.0.02%;0.02% B.0.02%;0.05% C.0.04%;0.02% D.0.06%;0.02%