As PMI testing technology has advanced, former practices of testing only a fraction of all parts and assemblies have been replaced by 100% comprehensive materials testing in thousands of plants.
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- 由于采购经理人指数测试技术先进,前者的做法,测试中只有一小部分的所有部件和组件已更换了100 %25的综合材料试验,在数以千计的工厂。