Crystal instrument is the key part of plane casting, the structure affects directly the surface quality of drawing material.
结晶器是水平连铸工艺中的关键工装部件，其结构直接影响拉拔管材的表面质量。
The experiment shows that adopting protective casting technology can reduce reoxidation and improve the internal and surface quality of block.
试验结果表明采用钢包注流保护浇注技术可降低二次氧化，提高铸坯内在和表面的质量。
High quality titanium casting is directly related to property and surface quality of shells.
高质量的钛合金铸件与熔模型壳的性能和表面质量有着直接的关系。
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