电铸复制卷筒照片孔型图，不需要进一步的加工。
Electroformed apertures reproduce the mandrel photo resist finish faithfully and do not require any further processing.
介绍了钢管张力减径机上所使用的硬质合金轧辊的材料、结构、孔型的加工和安装及冷却。
Materials, structure, roll pass machining, installation and cooling of cemented carbide roll rings in stretch reducing mill are introduced.
介绍了波形孔型的变形原理、设计与加工以及应用情况。
Also involved are the deformation theory, design, machining and operational performance of the waved groove.
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