通过生产试验，基本上掌握了生产技术要求。
Production tests indicate it is easy to master this technology.
缺点：生产技术要求高，水侵蚀超过72小时易产生碳酸结晶。
Disadvantages: technical requirements of high production, more than 72 hours of water erosion is easy to produce carbonic acid crystals.
生产实践表明，采用该铸造工艺，生产的铸件组织致密，符合生产技术要求。
The productive practice indicates that the castings' microstructure produced by the technology is compact and the quality of the castings can meet the technical requirements.
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