Describe and review measurement methods such as attribute screens, gauge blocks, calipers, micrometers, optical comparators, tensile strength, titration, etc.
描述和评价测量方法，例如：属性筛选法、块规法、测径器、千分尺、光学比较仪、抗张强度、滴定等。
2
Ultrasonic Thickness Gauge, hardness tester, infrared thermometer, and torque wrench and many finished product test equipment etc. Those attribute to conformance rate of delivered products is 100%.