Actual dimensions in millimetres for flanges and valve face-to-face measurements shall be identical to those corresponding to inches noted in applicable ASME/ANSI/ISA/API codes and standards.

• 法兰和阀门面-面以毫米为单位度量的实际尺寸应与那些和标有可利用的ASME/ANSI/ISA/API规范和标准相应的英寸相同。