Primary uses for wrot brass are for ball valve stems and balls, and iron valve stems. a forging grade of brass is used in ball valve bodies and pieces.
黄铜的主要用途是球阀阀杆和球体，和铸铁阀门的阀杆。可锻黄铜可用于球阀阀体和断口部件。
The technique can not only increase greatly the thronghput capacity of the plant's ball mills, but also maintain the original grade of concentrate.
该工艺在保证精矿品位的前提下可较大幅度地提高球磨机处理能力。
If you find any ball bearings wrong, please replace it with new ball bearing. Higher grade ABEC ball bearings do little, and normal grade is enough.
如果你发现有任何轴承坏了，请重新换上好的轴承，最好是用高等级的ABEC轴承，一般等级的轴承也足够了。
The softening point of these materials was determined by ring and ball method. The gardner method was used to evaluate the colorimetry and grade. The materials were characterized in detail by IR.
通过环球法和加特纳法分别测定这类物质的软化点及评定其色价、等级，并测定了这类物质的红外光谱、紫外光谱、 荧光光谱和差热-热重变化。
Jointly launched three brand series of high, medium and low-grade ball-point pen.
共同推出三大品牌系列的高，中，低档圆珠笔。
South Korea KOMELON steel-ball club, mainly for the production of high-grade tape.
韩国KOMELON珠式会社，主要为生产高档卷尺。
The refractory plate is made with high grade bauxite, burn-off stone, light synthetic foam powder, aluminum titanate powder, phosphoric acid and water, and through mixing, ball milling and casting.
本发明耐火板材，其由高级铝矾土、烧化石、轻质泡沫合成粉、钛酸铝合成粉、磷酸、水经混合球磨后，浇铸成耐火板材。
The refractory plate is made with high grade bauxite, burn-off stone, light synthetic foam powder, aluminum titanate powder, phosphoric acid and water, and through mixing, ball milling and casting.
本发明耐火板材，其由高级铝矾土、烧化石、轻质泡沫合成粉、钛酸铝合成粉、磷酸、水经混合球磨后，浇铸成耐火板材。
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