Sprech Tenso-Structures Pvt. Ltd. Manufactures Arched Shaped Structure Module. Sprech Tenso-Structures Pvt. Ltd. Has been awarded ISO 9001:2000 certifications. Arched Shaped Structure Module has been available with the quality of round arches on all the four sides Arched Shaped Structure Module is based on the use of an innovative [patented] fabric connection which simplifies the construction and installation of complex roofs through very simple elements. These arched shaped structures are used to cover big areas for catering, tourist spots, events etc. It is available in the model name of CROSS VAULT.