宝钢产流体输送低中压锅炉用无缝钢 20GB/T8163 3087-199938*3.6/4/4.5/5/6.1/888.9*4/4.5/5/6.1/8/10/14.2/1642.4*3.6/44.5/6.1101.6*4.5/5/6.1/8/10/12/14.2/1644.5*3.6/4/4.5/5/6.1108*4/4.5/5/6.1/8/10/14.2/1648.3*3.6/4/4.5/5.6/6.1/8114.3*4.6/5/6.1/8/10/14.2/1651*3.6/4/4.5/5/6/8121*4.5/5/6.1/8/10/1454*4/5/6/8127*5/6.1/8/10/14.2/16/18/2057*3.6/4.5/6.1/8/10133*5/6.1/8/10/12/14.2/17/18/2060.3*3.6/4/4.5/5/6.1/8/10139.7*4.6/5/6.1/8/10/14.2/18/2063.5*3.6/4/4.5/5/6.1/8/10146*5/6/8/10/12/14/1868*4/5/6.1/8/10152*5/6/8/10/12/14/16/18/20/2270*4.5/6.1/8/10159*4.5/5/6.1/7/8.1/10/12/14.2/1673*5/6.1/8/10/12/14.2159*18/20/22/2576.1*4/4.6/5/6.1/8/10/12.5/14.2168*8/10180*8/10