This standard specifies general rules for machined parts of rock drilling machinery and pneumatic tools, measurement methods of dimensions without tolerances, shape and position tolerances, and coating thickness. This standard applies to machined parts of rock drilling machinery and pneumatic tools.
JB/T 7164-2004 history
2014JB/T 7164-2014 Rock drilling machines and pneumatic tools.General specifications for machined parts
2004JB/T 7164-2004 General specifications for machined parts of rock drilling machines & pneumatic tools
1993JB/T 7164-1993 General technical requirements for machining parts of rock drilling machinery and pneumatic tools