ISO 496 : 1973(R2015)现行
DRIVING AND DRIVEN MACHINES - SHAFT HEIGHTS
出版：International Organization for Standardization
专家解读视频
Covers driving and driven machines with heights 25mm and above. Valves are chosen from R5, 10, 20 & 40 series.
DS 133 : 1975 - Identical
BIS IS 2031 : 1987(R2002) - Identical
NFE 01 051 : 78 FD - Similar to
BIS IS 2031 : 1987(R2002) - Identical
DS 133 : 1975 - Identical
NFE 01 051 : 78 FD - Similar to
