日本一卡2卡三卡4卡免费观看 ,得得啪在线视频观看,丰满人妻连续中出中文字幕在线,亚洲精品久久久久中文字幕

Workshop display

Metal random packing production workshop

The metal integrated stamping workshop has 22 fully automatic stamping production lines with industry-leading technology.
The original multi-process integrated stamping die is equipped with an intelligent detection device, 300,000 times free of maintenance, and 500,000 times free of maintenance.
With an annual output of 30,000 cubic meters of finished products, the operating cost is one-fifth of the traditional process, maintaining an absolute competitive advantage in the world.