日韩精品无码av成人观看-日韩精品无码av中文无码版-日韩精品无码观看视频免费-日韩精品无码久久久久成人-日韩精品无码久久一区二区三-日韩精品无码免费网站

1. Basic requirement: Determine the length, width, and height of the cardboard box Generally, a three-layer cardboard box has a paper thickness of around 3.5mm, while a five layer cardboard box ha ...

Common problems and solutions for cardboard box processing equipment: 1、 Upgrade and renovation of high-speed ink printing machine and circular die cutting machine: ① The push plate type has been ...

According to the latest global paper market research and analysis by Bailey Management Consulting, the global demand for paper and cardboard will reach 482 million tons by 2030, which means an average ...

The automation level of existing domestic production lines can be done relatively well, but in reality, most carton companies do not want to invest too much and rely on the operational skills of their ...

Through process control in production, it is also a way to reduce production costs. By ensuring the quality of pre press typesetting and printing processes, for irregularly shaped small cardboard bo ...