出口美国白铜刮刀的铸造

The Investment Casting of German silver scrapper Blade Exported to the U. S. A.

生产的白铜刮刀已成功地出口美国。关键问题是用W除气剂,解决无缩气孔,令人满意的铸件。

The german silver scrapper blade produced has exported successfully to the U. S. A. It is a swith to solve the problem that using the degassing agent W in the investment. And the castings must be close to the mon-porosity specified