在毛主席革命路线的指引下,我车间广大职工,坚持以阶级斗争为纲,在三大斗争的实践中,遵循伟大领袖毛主席“人类总得不断地总结经验,有所发现,有所创造,有所前进”的教导,把戚机厂水玻璃石灰石砂这一先进经验和我厂原来全部采用粘土干型砂造型这一具体生产特点相结合,在1972年研试成功了“粘土干型石灰石砂”新工艺。并且不断地得到了巩固、提高、发展和推广,粘土干型石灰石砂 Under the guidance of Chairman Mao’s revolutionary line, the broad masses of workers and workers in our workshop adhere to the principle of class struggle. In the practice of the three major struggles, we must follow Chairman Mao, the great leader. “Man always sums up his experience, finds out, creates, Advanced ”teaching, the advanced experience of Qi Machine Factory water glass limestone sand combined with the specific production characteristics of the original use of clay dry sand modeling of our factory, and successfully researched in 1972“ clay dry limestone sand ”New Technology. And continue to be consolidated, improve, develop and promote clay dry limestone sand