Taiwan Provincial Standard of the People's Republic of China
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CNS 5622-1980
Scope
This standard applies to the shape and size of the front end parts of the water pipe and blow pipe (hereinafter referred to as the water pipe) of impact rock drills before they fit with the handle.
CNS 5622-1980 history
1980CNS 5622-1980 Shape and Dimension of Water Tube for Rock Drill