The raw materials and the pretension method are improved.
对原材料和预张拉方法进行改进。
A pretension method for major diameter bolts using hydraulic stretching equipment is introduced.
介绍了一种大直径螺栓的预紧方法液压拉伸预紧法。
A pretension method for major diameter bolts using hydraulic stretching equipment is introduced.
介绍了一种大直径螺栓的预紧方法液压拉伸预紧法。
应用推荐