This standard stipulates the working hours quota for machining of typical parts of marine diesel engines. This standard is applicable to the machining hours of typical parts of medium and low-speed marine diesel engines with cylinder diameters of 180 to 800 mm. The machining of similar parts of non-marine diesel engines can also be used as a reference.
CB 1075-1988 history
1970CB 1075-1988 Man-hour quota for marine diesel engine machining