（1）Space frame structure
With the advantage of professionals, North Space has made some successful achievements in the research and development of new frame structure products, new joints, general steel grid frames with soldered ball joints, stainless grid frames and other decorative grid frames are all widely used for industrial factory buildings, gyms, airports, stations, high-grade office buildings and other public buildings.
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(2）Space girder structure
It is an alternative scheme of traditional grid structure and designed to be triangular or quadrilateral space girder structure on reinforced concrete piles or in the ground. The circular steel pipe (arc girder ) intersecting welded joints ate used for the upper chord, lower chore and web members of the girder. Or the square steel pope and H-shape steel (straight girder) butt welded joint are adopted. The adoption of the support system with upper and lower chords is a favorite style of architects for its beautiful appearance.
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