Room temperature blackening mechanism of steel is discussed. Both a formula and operation hints are presented.

提出了一种常温钢铁发黑工艺及其作用机理、发黑液配方和操作要点。

youdao

Room temperature blackening mechanism of steel is discussed. Both a formula and operation hints are presented.

提出了一种常温钢铁发黑工艺及其作用机理、发黑液配方和操作要点。

youdao