The pressed assembly special equipment of hydraulic jacks, pressed assembly machine with hydraulic cylinder column is manufactured in the general mechinery plant of Huaibei Mining Industry Group.
淮北矿业集团机械总厂自行开发研制了液压千斤顶压装专用设备—缸柱压装机床，实现了千斤顶总装过程的自动化，减轻了工人的劳动强度。
The reliability of this technique, which is based on the use of special flat-jacks, has been studied by means of calibration tests carried out in laboratory on large size samples.
试验中采用专用的扁式液压千斤顶，并采用试验室足尺模型标定试验，研究了这种方法的可靠性。
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