feed box

Analysis on feed leakage from gas outlet tubes of alumina feed boxes and its countermeasures;

氧化铝料箱排气管漏料分析及对策

The forms and requirements of the foldable plastic cases are introduced.

介绍了可折叠式塑料箱体制品的形式及要求,探讨了可折叠式塑料箱体结构及其注射模结构的优化设计,以达到简化其注射成型模具结构的目标,对这类新型包装容器的开发和应用有指导意义。