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Utilizing his knowledge of spheres and triangles, Fuller's target was to vary "human shelter."  He planned To do that by applying the "sphere basic principle" to shelter building, making shelter additional snug and successful, and (most importantly) producing shelter more economically accessible to a better amount of people.  Designed to be the "

OEM double layer roll forming machines continually bend and kind metallic coils into personalized profiles with two layered sections. They generate complex symmetrical and asymmetrical designs by progressively rolling sheets through a number of roller dies.Panels jamming – Improve roller box separation a little bit or decrease forming force. Veri