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What materials are the components of mechanical equipment (automation equipment), steel, iron or others?

The base is usually cast iron. Generally forgings are relatively sliding, mainly depending on your specific requirements and parameters. The cost along the coast is relatively high. Chongqing is an old heavy industrial city, and Chengdu's high-precision processing is also good. There are many processing plants in Chongqing, such as Geleshan, Dazhulin, Shuang Shan and Bishan. There are many Longquanyi, Xindu and Gaoxin West Districts in Chengdu, and Mianyang and Yibin in Sichuan.

If your craft has not been decided, I suggest you find some old state-owned enterprises, factories or universities to decide the craft first. For example, Chongqing Institute of Science and Technology, Qingping Changan Group and so on. Sichuan's 420 (Chengfa), 167 (Lingchuan), 132 (Cheng Fei) and so on.