The drift diameter is the inside diameter (ID) that the pipe manufacturer guarantees per specifications.

通径规的直径就是管子生产商所能够确保的每一管子说明书上的内径。

youdao

The drift diameter is the inside diameter (ID) that the pipe manufacturer guarantees per specifications.

通径规的直径就是管子生产商所能够确保的每一管子说明书上的内径。

youdao