Cr系合结钢Φ25-13040Cr新兴铸管3770-热轧;Cr系合结钢Φ131-18040Cr新兴铸管3870-热轧;Cr系合结钢Φ181-20040Cr新兴铸管3890-热轧;Cr系合结钢Φ20-9040Cr华菱湘钢3800-热轧;Cr系合结钢Φ95-13040Cr华菱湘钢3850-热轧;Cr系合结钢Φ135-17040Cr华菱湘钢3880-热轧;Cr系合结钢Φ175-22040Cr华菱湘钢3930-热轧;