Product testing results proved that the problem had been solved successfully. The charge valve cores produced through the direct molding technics can satisfy all requirements.
产品试验结果表明，阀芯在批次和典型试验后掉胶、脱胶问题已基本得到解决，直接模压成型工艺可以生产出满足要求的充气阀阀芯。
And, the up-to-date technical trends of processing technics and the major working principle used for microcellular plastics by injection molding at home and abroad are introduced.
并特别介绍了几种国内外微孔塑料注射成型加工工艺的最新技术动态以及其主要的工作原理。
The development of the plastics for rotational molding rotational molding machines and technics was reviewed.
综述回转成型塑料、设备与工艺的研究进展。
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