In terms of a circular plastic product, a simple pin point gate mould was designed.
针对一种圆筒形制品，设计了一种结构简单的点浇口成型模具结构。
Structure and characteristics of domestic plastic top pin are introduced.
这种波导管的主要特点是结构简单。
Structure and characteristics of domestic plastic top pin are introduced.
这台仪器的特点是结构精巧，携带方便。
Structure and characteristics of domestic plastic top pin are introduced.
这台仪器的特点是结构精巧，携带方便。
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