Cr系合结钢Φ25-13040Cr新兴铸管3810↑10热轧;Cr系合结钢Φ131-18040Cr新兴铸管3910↑10热轧;Cr系合结钢Φ181-20040Cr新兴铸管3930↑10热轧;Cr系合结钢Φ20-9040Cr华菱湘钢3840↑10热轧;Cr系合结钢Φ95-13040Cr华菱湘钢3890↑10热轧;Cr系合结钢Φ135-17040Cr华菱湘钢3920↑10热轧;Cr系合结钢Φ175-22040Cr华菱湘钢3970↑10热轧;