Cr系合结钢Φ25-13040Cr新兴铸管3790-热轧;Cr系合结钢Φ131-18040Cr新兴铸管3890-热轧;Cr系合结钢Φ181-20040Cr新兴铸管3910-热轧;Cr系合结钢Φ20-9040Cr华菱湘钢3820-热轧;Cr系合结钢Φ95-13040Cr华菱湘钢3870-热轧;Cr系合结钢Φ135-17040Cr华菱湘钢3900-热轧;Cr系合结钢Φ175-22040Cr华菱湘钢3950-热轧;