刚玉绝缘管1-2.550-1003.3-3.86刚玉绝缘管1-2.5101-2006.6-7.72刚玉绝缘管1-2.5201-35012.1-14.16刚玉绝缘管1-2.5351-50014.3-16.73刚玉绝缘管1-2.5501-75018.7-21.88刚玉绝缘管1-2.5751-100024.2-28.31刚玉绝缘管2.6-4.550-1007.7-9.01刚玉绝缘管2.6-4.5101-20011-12.87刚玉绝缘管2.6-4.5201-35015.4-18.02刚玉绝缘管2.6-4.5351-50020.9-24.45刚玉绝缘管2.6-4.5501-75025.3-29.6刚玉绝缘管2.6-4.5751-100034.1-39.9刚玉绝缘管2.6-4.51001-125045.1-52.77刚玉绝缘管4.6-850-10011-12.87