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HR***5-50.Resistancetowearandcorrosionathigh-temperature.Hardfacingofvalveandhot-rollingpass.HR***5-50，高温下耐磨、耐蚀。堆焊阀门，热轧孔型HR***5-50.Resistancetowearandcorrosionathigh-temperature.Hardfacingofvalveandhot-rollingpass.HR***5-50，高温下耐磨、耐蚀。堆焊阀门，热轧孔型HR***5-50.Resistancetowearandcorrosionathigh-temperature.Hardfacingofvalveandhot-rollingpass.HR***5-50，高温下耐磨、耐蚀。堆焊阀门，热轧孔型HR***5-50.Resistancetowearandcorrosionathigh-temperature.Hardfacingofvalveandhot-rollingpass.HR***5-50，高温下耐磨、耐蚀。堆焊阀门，热轧孔型HR***5-50.Resistancetowearandcorrosionathigh-temperature.Hardfacingofvalveandhot-rollingpass.HR***5-50，高温下耐磨、耐蚀。堆焊阀门，热轧孔型)