预应力环形等经杆的骨架制作,长期以来是制杆工艺上的难题。我公司广大职工遵照毛主席关于“自力更生,艰苦奋斗”的教导,在党委的领导下成立了“三结合”设计制造小组,群策群力攻难关,经过反复研究修改,奋战了四个月时间,设计并制造出一台预应力环形等经杆骨架点焊缠筋机(见图一)。经一年多 The production of skeletons of pre-stressed rings and other rods has long been a problem in the rod making process. In accordance with Chairman Mao’s guidance on self-reliance and hard work, our company’s employees established a “three-in-one” design and manufacturing team under the leadership of the party committee. They worked together to resolve difficulties, and after repeated studies and revisions, they fought for four months. A prestressed ring-shaped rod frame spot welding machine (see Figure 1) was manufactured. After more than a year