凿岩机气腿的外管长期以来是用进口的合金铝管制作,每年要耗用国家不少的外汇。我厂广大革命职工,遵照毛主席关于““独立自主”,“自力更生”和“开发矿业”的教导,勇于实践,大胆创新,在沈阳风动工具厂的协助下,研制成凿岩机用FT140、FT160和YSP45型玻璃钢气腿的外管。一年多来,在全国十多 The outer leg of the rock drill has long been made of imported alloy aluminum tubes, consuming a lot of foreign exchange every year. With the help of Chairman Mao’s teachings of “independence, self-reliance and development of mining,” we courageously practice and make bold innovations. With the help of Shenyang Fengdongju Tools Factory, we have developed the FT140, FT160 YSP45 glass fiber reinforced plastic legs outside the tube. More than a year, more than 10 in the country