1. 中文毛片无遮挡高清免费,国产精品无码久久久久高潮,69国产精品成人无码免费视频,久久久久成人精品国产亚洲综合无码av

        Welcome to hongqing!

        Service hotline:0769-83342081     Email:sales@www.bitsolutions.cn

        News

        What are the req...

        1. In-depth analysis of the structure and technical requirements of plastic parts. Plastic parts structure determines the complexity of the structure of injection mold, plastic parts of the technical requirements (such as dimension...

        Details

        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

        Plastic mold indu...

        It is understood that the emergence and development of recycled plastic mold, plastic product pollution is expected to be resolved. In recent years, people more and more attention to living environment quality, to enhance the en...

        Details

        The new direction...

        With the rapid development of China& 39;s pillar industries such as machinery, automobiles, home appliances and building materials, plastic molds account for about 30% of the entire mold industry. However, due to the complex shape...

        Details
        11條 上一頁 1 2 下一頁    
        中文毛片无遮挡高清免费,国产精品无码久久久久高潮,69国产精品成人无码免费视频,久久久久成人精品国产亚洲综合无码av 国产亚洲精品精品精品| 人妻无码久久一区二区三区免费| 真人高清实拍女处被破的视频| 国产国产午夜精华免费| GOGOGO高清在线播放| 原来神马在线观看免费完整版| 久久伊人热精品老鸭窝| 久久精品免费| 好吊妞国产日韩无码精品| 亚洲 欧美 韩国精品|