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新螺纹是一项先进的技术,采用这项新技术在政治上经济上具有重大意义。根据国家科委的要求,铁道部已在1966年开始采用了国家标准新螺纹的內螺纹,各局、厂正在积极贯彻与过渡中。关于外螺纹,国家科委要求在1967年了月1日开始采用,目前一机部、七机部等巳开始采用,很多生产螺纹量、刃具和紧固件的工厂,已大量生产、供应新螺纹的量、刃具
The new thread is an advanced technology that is politically and economically significant with this new technology. According to the requirements of the State Science and Technology Commission, the Ministry of Railways started adopting the internal thread of the national standard new thread in 1966, and the offices and factories are actively implementing and transitioning. As for the external thread, the State Science and Technology Commission requested that it be used on the 1st of January, 1967. At present, the first machine department and the seventh machine department have started to be adopted. Many factories producing the thread amount, cutting tools and fasteners have been mass-produced and supply new The amount of thread, cutting tools