In recent years, 3D printing technology has realized commercial application in many fields. Among them, in the field of construction, high-grade cement and glass fiber are mostly used as raw materials "ink" in the use of 3D printing technology. However, due to the glass fiber will affect the human respiratory system, and the future recovery of high-strength cement is also difficult and other technical reasons, 3D building printing technology in the world has not been rapid popularization. Recently, the world leader in 3D building printing, Chinese businessman Lu Hai, took the traditional reinforced concrete as the "ink" and "printed" the "New Windsor Castle" with an area of more than 600 square meters in just two months. Immediately become the focus of global construction. Then, some experts think that the use of reinforced concrete "printing" by Chinese merchants on land and sea has become "New Windsor Castle" which has conquered the "biggest" original pain point in the world "of 3D architectural printing, and will greatly promote the widespread application of 3D printing technology in the field of architecture! It is understood that, as the only enterprise in the world that uses reinforced concrete as the raw material to print buildings as a whole, land and sea, a Chinese businessman, has been continuously working in the field of "3D building printing" and developing a set of world's leading 3D printing housing equipment.