我国的铸造生产,在数千年中,积聚了无数劳动人民的智慧与经验,有着极为光辉的成就.在整个前资本主义时期,我国铸造业的规模和技术水平一直位于世界的最前列,并对其他民族起着积极的影响.革命胜利后,由于社会制度的根本变革,解放了生产力,铸造生 The foundry industry in our country has accumulated brilliant achievements in the wisdom and experience of countless working people for thousands of years. Throughout the pre-capitalist period, the scale and technological level of our country’s foundry industry have been at the forefront of the world Have a positive impact on other ethnic groups after the victory of the revolution, due to the fundamental changes in the social system, liberated the productive forces, casting students