HRc38-47.Resistancetowearandcorrosionathigh-temperature.Hardfacingofhightemperatureandpressurevalve.HRc38-47，高温下耐磨、耐蚀。堆焊高温高压阀门HRc38-47.Resistancetowearandcorrosionathigh-temperature.Hardfacingofhightemperatureandpressurevalve.HRc38-47，高温下耐磨、耐蚀。堆焊高温高压阀门HRc38-47.Resistancetowearandcorrosionathigh-temperature.Hardfacingofhightemperatureandpressurevalve.HRc38-47，高温下耐磨、耐蚀。堆焊高温高压阀门)