本发明提供的方法能控制加工精度，满足精密产品加工的要求，提高产品等级。
The method can control machining precision, meet machining requirements of precision products and improve product grades.
具有对产品防漏防潮、防伪、防氧化、耐腐蚀、保鲜、延长保质期的功能、提高产品等级、实现包装的完整性。
Leak of the product with moisture, security, oxidation, corrosion, fresh, extended shelf-life functions, improve the product level, the integrity of packaging.
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