我厂铸造车间广大工人、干部和技术人员在厂党委的正确领导下认真学习无产阶级专政理论,高举“鞍钢宪法”光辉旗帜,深入开展技术革新和技术革命,大力推广“七○砂”。经过半年多的反复实践,试验成功了用“七○砂”生产铸铁件。 Under the correct leadership of the factory Party committees, the vast numbers of workers, cadres and technical personnel in the casting workshop of our plant conscientiously studied the theory of proletariat’s dictatorship, held the glorious banner of “Anshan Steel Constitution”, carried out technological innovation and technological revolution in depth, and vigorously promoted the “70 sand.” After more than six months of repeated practice, the successful trial of “700 sand” cast iron production.