成人福利国产午夜av免费不卡_日本制服丝袜亚洲天堂_欧美喷水自慰精品二区_免费观看性生交大片人_中文字a∨字幕在线观看_国产东北妇女露脸_国产一级特黄a高潮片_欧美午夜乱色视频在线观看_精品一级毛片免费视频_欧美一区二区VIDEO

Welcome to hongqing!

Service hotline:0769-83342081     Email:sales@dghongqing.com

Industry

Influence factors...

Factors influencing plastic mold making:1. Parting surfaceWhen the die is closed, the die and the punch are combined.2. Structural partsThey are the sliding block, sloping top block and straight top block of the complex mould.3....

Details

What are the app...

Injection mold is one of the important technology and equipment, production of various industrial products with the rapid development of plastic industry, as well as plastic products in aviation, aerospace, electronics, machinery, ...

Details

How is an injection mold made?

Although the mold structure may vary due to the variety and performance of plastics, the shape and structure of plastic products and the type of injection machine, the basic structure is the same. The mold is mainly composed ...

Details
9條 上一頁 1 2 下一頁