“六五清砂”是我国工人阶级高举毛泽东思想伟大红旗,从生产实践中创造出来的具有重大政治意义和经济意义的先进清砂方法。“六五清砂”的革新成功,从根本上改变了清砂工序劳动条件差、劳动强度大、生产效率低的落后面貌;同时也为水玻璃旧砂湿法再生开创了广阔的前途。我厂职工遵循伟大领袖毛主席的教导,发扬了敢于革命、勇于实践的革命精神,打破常规,尽量采用先进技术,创出了一套符合多、快、好、省精神的“六五清砂”旧砂湿法再生工艺和设备。这套工艺和设备是在 The “June 5 Clear Sands” is an advanced sand-cleaning method of great political and economic significance created by the working class in holding high the great red banner of Mao Zedong Thought. The success of “Six-Five-Qingzhu” innovation fundamentally changed the backward conditions of poor working conditions, labor-intensive and low production efficiency in the sand-cleaning process. It also opened up a promising future for the wet-regeneration of water glass old sand. The workers and staff of our factory follow the guidance of Chairman Mao, the great leader, and carry forward the revolutionary spirit of daring to revolution and courage in practice, breaking the routine and using advanced technology as far as possible to create a set of “six-five clear sand ”Old sand wet regeneration process and equipment. This set of craft and equipment is here