9Cr18MoV炉辊管-离心铸管-无缝管-耐热钢套管-筒体- ¥24.00 9Cr18MoV耐热钢无缝管-厚壁管-离心铸管-套管-排渣管- ¥24.00 ZG4Cr25Ni20Si2不锈钢管-炉辊管-离心铸管-耐热钢套管-炉管- ¥24.00 40Cr13耐热钢离心铸管-厚壁管-无缝管-筒体- ¥24.00 耐热钢炉辊管-离心铸管-炉管-9Cr18MoV ¥24.00 ZG4Cr25Ni20Si2不锈钢管-厚壁管-耐热钢离心铸管-筒体- ¥24.00