This paper introduces the design of light-duty roof caving coal hydraulic support equipped with flat tramcar and transportation on ground and under ground.
2
本实用新型涉及一种超平尺，它由：调整螺旋杆、固定托、螺钉、超平板、超平尺、水平标、支架构成。
The utility model relates to a super flat ruler which is composed of adjusting screw rods, a fixed support, a screw, a super flat plate, a super flat ruler, a horizontal scale and a bracket.
点击反馈