如DN15的水管就是英制1/2的水管,也是以前的4分水管。如DN20的水管就是英制3/4的水管,也是以前的6分水管1.23210.012.014.016.018.020.024.036.021.2526.7533.542.25483.25/44/4.7528.2434.5940.9554.0566.7579.85101.6114.3139.8108.0133.0106.27131.67165.2216.3267.4318.5355.6406.4457.2508.0558.8609.6159.0219.0267.0323.9368.0419.0457.2508.0558.0619.0157.68208.48260.50312.11363.72414.52465.32516.94567.74619.35165.0-167.6216.0-218.8267.0-270.1318.0-321.32660.4711.2DN表示。3科教兴国4
如DN15的水管就是英制1/2的水管,也是以前的4分水管。如DN20的水管就是英制3/4的水管,也是以前的6分水管1.23210.012.014.016.018.020.024.036.021.2526.7533.5242.25483.25/44/4.7528.2434.5940.9554.0566.7579.85101.6114.3139.8108.0133.0106.27131.67165.2216.3267.4318.5355.6406.4457.2508.0558.8609.6159.0219.0267.0323.9368.0419.0457.2508.0558.0619.0157.68208.48260.50312.11363.72414.52465.32516.94567.74619.35165.0-167.6216.0-218.8267.0-270.1318.0-321.33660.4711.2DN表示。4科教兴国
河北联合大学轻工学院QINGGONGCOLLEGE,HEBEIUNITEDUNIVERSITY设计(论文)题目:设计一座公称容量为3×200t的氧气转炉炼钢车间,生产板坯河北联合大学轻工学院毕业设计目录摘要本设计为3座200吨氧气转炉炼钢车间。车间的各主要系统为:铁水供应系统、散状料供应系统、废钢供应系统、铁合金供应系统,烟气净化系统、浇注系统、炉外精炼系统等。这些方案都是经过比较而确定的比较合理的适合本设计的方案,并且采用了国内外的先进技术...
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