自制国产2020福利看片_高清午夜福利视频_男女啪啪抽搐高潮动态图_诱人的护士中文字幕A片_亚州天天一区网_人妻少妇看A偷人无码精品_日韩AV天堂资源_秋霞电影网免费观看_久久精品国产福利国产一二三区_亚洲a∨粉嫩一二三区

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(jī)械、糧食機(jī)械及其他易磨損部件表面的補(bǔ)強(qiáng)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(chǎn)品規(guī)格 Grade specification：

粒度檢查相應(yīng)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(yīng)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(chǎn)品規(guī)格 main chemical composition %：

鎢含量采用重量百分?jǐn)?shù)差減法求得。

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