我们上海科技交流站焊接队的同志,通过学习无产阶级专政理论,更加坚定了科学技术要为无产阶级政治服务,为生产服务的方针。最近,我们对白铁管与铝管的焊接进行了反复试验取得了初步成果。过去认为这两种金属是不能焊接的,实践证明,这种看法是错误的。我们分析了白铁管和铝管的熔点,认为前者比后者高一倍多,因此要获得一种完全熔化的接头是极困 Through our study of the theory of dictatorship of the proletariat, our comrades at the welding team of the Shanghai Science and Technology Exchange Station have further strengthened the principle that science and technology should serve proletarian politics and serve production. Recently, we have made preliminary results on the trial of the welding of white iron pipe and aluminum pipe. In the past that these two metals can not be welded, the practice has proved that this view is wrong. We analyzed the melting point of white iron pipe and aluminum pipe, that the former is more than double the latter, so to obtain a completely melted joints is extremely difficult