At Dongguan Port in Guangdong Province, gantry cranes slowly lifted super-large cargo and loaded them one by one onto large ocean-going cargo ships. This cargo appears to be containers from a distance, but up close, each one is revealed to be a box-shaped building. Once transported across the sea to Australia, North America, and the Middle East, these buildings are assembled like building blocks and transformed into hotels, apartments, hospitals, and more.

The work site of China Construction Science and Industry Corp. Green Technology Co., Ltd.'s intelligent factory for steel structure modular products, located in Huiyang District, Huizhou City, Guangdong Province, has no dust on the floor and no scaffolding, but a fully automated production line over 400 meters long operates day and night. Robots move their arms, automated guided vehicles (AGVs) move crisscrossing around, and as humans and machines collaborate, welding sparks fly everywhere. This is China's first intelligent steel structure modular production line.

The modules produced here consist of a bottom, a top, and four sides, are manufactured in parallel on six sub-production lines, and finally assembled into a box shape at the end of the line.

During an interview, Li Huakun, the company's chief engineer, asked the reporter how many modules could be produced on this production line in a single day.

Li held up five fingers and said, "The answer is 50! While factories of the same type in North America can produce 5 units per day, our company can produce ten times that amount."

According to Wang Qiong, chief engineer of China Construction Hailong Technology Co., Ltd., over 70% of the processes are now carried out within the factory, and the construction period has been shortened by over 60%. The annual delivery capacity of precast concrete modules from this production line is said to reach 20,000 to 30,000 units.

With improvements in industrialization standards, digitalization accuracy, and automation efficiency, buildings are shifting from "on-site construction" to "factory manufacturing." The fact that buildings are now constructed like cars is why China's "prefabricated houses" are receiving a flood of orders from around the world.

In Australia, labor costs accounted for 30% to 40% of the total cost in traditional construction methods. The advantage of modularization lies in the fact that many processes can be carried out beforehand in factories within China, which has cut labor costs at construction sites by more than half and shortened the construction period by more than half. Li pointed out, "Overall construction costs have been reduced by more than 10%."