Discuss punching small thread fluted opening technology, die structure, die design and die manufacture technology on thin sheet.

论述了在薄板冲压件上，用变薄翻边冲制小螺纹底孔的工艺、冲模结构、设计与制作技术。

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MANUFACTURER of Fluted (PP) Polypropelene Sheet used for protective packaging.

带坑槽聚丙烯板制造商用于保护性包装。

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MANUFACTURER of Fluted (PP) Polypropelene Sheet used for protective packaging.

带坑槽聚丙烯板制造商用于保护性包装。

youdao