【摘要】 介绍了一种新型的内卡式器具多功能液压升降器它不仅可以在固定的支撑物上提升下放或拖动重物亦可在固定的钢索方钢圆钢等物体上持重爬行结构新颖方便灵活有广泛的实用价值和应用前景更多还原

【Abstract】 The paper introduces a new kind of inner calipers instrument that is multi-function hydraulic riser, which not only can lift, lower or drag heavy onfixed strutting, but creep with heavy along fixed steel cable, square steel,round steel etc. It has extensively practical value and applying prospectfor its novel structure and flexible performance.更多还原