PUG is used to check the assembly relation of all relative parts of components, it helps to reassure the precision of the auto body, and to find the faults of the design, so as to find and remove the existing problems.

• 总成检具主要用来检查各装潢件单件或总成件各件之间的安装匹配关系，保证车身各部分的匹配精度，依靠PUG总成检具，能及时发现设计缺陷，识别和排除存在的问题。