The possibility of one pass process and its product quality and economy for small billets are analysed.
分析了小型管坯一次穿孔成型工艺的可行性、产品质量和生产效益。
The enterprises have the most advanced glass production lines, product quality inspection center and state departments of glass test pass through the national CCC certification.
本企业拥有目前最先进的钢化玻璃生产线，产品质量国家玻璃检测中心和有关部门检测合格，通过国家CCC认证。
Product development and technological process, pass design, controlling product quality and so on in production are expounded.
对产品开发和生产过程的工艺制度、孔型设计、控制产品质量等方面进行了阐述。
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