部里在我厂召开“七○砂”现场会议,是对我厂广大革命职工的极大鼓舞和鞭策。我们相信在上级的重视和兄弟单位的支持下,一定会加抉推广“七○砂”的步伐,为早日根除矽肺病作出新贡献。现就“七○砂”试验、推广情况和我们的体会汇报如下:在毛主席革命路线指引下,我厂铸造战线上的革命职工在工厂党委领导下,遵循毛主席关于“中国应当对于人类有较大的贡献”的伟大教导,立足本职,胸怀祖国,放眼世界,发扬敢想、敢干的革命精神,七○年以来,对铸造生产中使用石英砂的旧工艺进行了彻底变革。创造性地试验成功用石灰石砂(即“七○砂”),代替石英砂,从而 The ministry held a site meeting on “700 sand” in our factory, which is a great encouragement and encouragement for the vast revolutionary workers in our factory. We believe that with the support of our superiors and our fraternal units, we will certainly step up the promotion of “700 sand” and make new contributions to the early eradication of silicosis. Under the guidance of Chairman Mao’s revolutionary line, the revolutionary workers on the foundry front of our factory, under the leadership of the factory party committee, follow the example of Chairman Mao’s article on “The trial that China should give to mankind Great Contribution ”. Based on our own work, our motherland, the world and the revolutionary spirit of daring to think and dare to do a great job, we have revolutionized the old process of using quartz sand in casting production since 1970. Creatively test the successful use of limestone sand (ie, “70 sand”), instead of quartz sand and thus