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天津市冶金局材料研究所广大职工,在学习无产阶级专政理论的运动中,在冶金部和天津市冶金局直接领导下,在兄弟单位大力协助下,经过奋战两个月,于一九七五年六月二十五日试制并生产出一批纯钛焊丝,为我国自行设计、自行制造的大型尿素设备贡献了力量。试制出的纯钛焊丝牌号为TA1,规格为
Under the leadership of the Ministry of Metallurgy and the Tianjin Metallurgical Bureau, under the direct leadership of the Ministry of Metallurgy and the Tianjin Metallurgical Bureau, with the vigorous assistance of the fraternal units, the vast number of staff and workers of the Institute of Materials, Tianjin Metallurgical Bureau, after studying the theory of dictatorship of the proletariat, On June 25, 2005, a series of pure titanium welding wires were trial-produced and produced, contributing to the large-scale urea equipment designed and manufactured by our country. Trial production of pure titanium wire TA1, specifications