Gas conditioning processing

This is the smallest unit of the machine and complete, its characteristics can not be separated out and meet all technical requirements. (For example, gears, shafts bike). Can put all the machine parts into two groups: - Detailed machine for general use (for example, bolts, gears; axis) is the machine parts used in many different machines. Details specific use machines have been used only in a certain number. (eg, crankshaft, valves, cam ...)