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