性状: 灰色颗粒、灰色粉末状

Properties and character：Gray particle and Gray powder

用途: 供作堆焊石油钻具、建材机械、粮食机械及其他易磨损部件表面的补强用材料。

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.

产品规格 Grade specification：

粒度检查相应符合：大小颗粒上限尺寸的粉末百分重量不得超过5%；

小于颗粒下限尺寸的粉末百分重量不得超过7%；

上述检查要求不适应YZ200-400f品种。

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.

产品规格 main chemical composition %：

钨含量采用重量百分数差减法求得。

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