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全国钢标准化技术委员会钢管分技术委员会(TC183/SCl)成立并开展工作钢管分技术委员会秘书处ESTABLISHING&FUNCTIONINGOFSTEELTUBE&PIPESUB-COMMITTEEOFCHINANATONALSTEELSTAND...
Steel Standardization Technical Committee Steel Sub-Technical Committee (TC183 / SCl) set up and carry out work Steel Sub-Technical Committee Secretariat ESTABLISHING & FUNCTIONINGOFSTEELTUBE & PIPESUB-COMMITTEEOFCHINANATONALSTEELSTAND ...