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天津市重工业局、各专署冶金工业局:根据人委和省委的指示,我们草拟了有关生铁和焦炭的质量标准,请即执行。在生铁的质量标准中,暂时规定了三类,土焦的灰分也规定了质量指标。此外,我们起草的这个规定,并非生铁质量标准的全部,只是强调了化学成分中含硫的问题,因此这不是一个完整的质量标准,待中央颁发出新的质量标准之后,这项暂行规定即行作废。河北省冶金工业局1958,12,26
Tianjin Heavy Industry Bureau, the Agency Metallurgical Industry Bureau: According to the instructions of the People’s Commission and the provincial Party committee, we drafted the quality standards on pig iron and coke, please implement. In the quality standard of pig iron, there are three categories temporarily stipulated, and the soil coke ash also stipulates the quality index. In addition, this provision we drafted is not all of the quality standards of pig iron, but only emphasizes the problem of sulfur in the chemical composition. Therefore, this is not a complete quality standard. After the central government has issued a new quality standard, the provisional provision will do the same Void. Hebei Province Metallurgical Industry Bureau 1958,12,26