精密制造、品质精良，欢迎垂询。
Precision manufacturing, quality excellent, inquiries are welcome.
精密制造技术总是要求一个好的表面光洁度低成本。
The precision manufacturing technology always demands a good surface finish at low cost.
在国内，对铁氧体基片精密制造技术还没有进行系统的研究。
In our country, the systemic study on precision manufacturing technology of microwave substrate has been vacant by now.
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