To meet the needs of tensile test for small diameter bolt and screw, this article gives a design of tensile testing device.
针对小直径螺栓和螺钉的拉伸试验要求，设计了一种拉伸试验装置。
Reliability test device of a minitype hooklifi was introduced and met the test requirements through tile test device of design, manufacturing and application.
介绍了一种小型拉臂钩的可靠性试验装置的设计和制造过程。
This paper gives a design of a novel withstanding voltage test device in which the test voltage can be adjusted automatically.
介绍了一种新型自动调压的电气耐压测试装置的设计。
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