ASTM A961 - A 961M - 24 管路用钢法兰盘,锻制管接头,阀门和零件的通用 要求规范
ASTM A961/A 961M-2024 Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications 管路用钢法兰盘,锻制管接头,阀门和零件的通用要求规范
2024-09-02
12
256.03KB
9 页