Home / Standards / GBT 28412-2012 GBT 28412-2012 General Technical Specification for Superalloy Precision Cast Blades 高温合金精铸叶片通用技术条件 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A