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性狀: 灰色顆粒、灰色粉末狀

Properties and character：Gray particle and Gray powder

用途: 供作堆焊石油鉆具、建材機械、糧食機械及其他易磨損部件表面的補強用材料。

Applications：Cast Tungsten carbied is used as a reinforcing mateeial for hardfacing of oil drilling tools.building-material production machines cereals processing machines and other easily wearing components.

產品規格 Grade specification：

粒度檢查相應符合：大小顆粒上限尺寸的粉末百分重量不得超過5%；

小于顆粒下限尺寸的粉末百分重量不得超過7%；

上述檢查要求不適應YZ200-400f品種。

The particle size shall meet the following reqirments during inspection：

The powder fraction larger than the upper limit of the size range shall not exceed 5% by weihet.

The powder fraction smaller the lower limit of the size range shall not exceed 7% by weihet.

產品規格 main chemical composition %：

鎢含量采用重量百分數差減法求得。

The tungsten content is obtained by means of the weight percent subractive method.