35
Distributorship services and project management for others of both standard and custom-made air-supported, cable supported or rigid frame supported roofs or roof sections, skylights, awnings and commercial umbrellas, containing fabric-like or membrane-like flexible materials, including metal materials, as an integral part of the structure
37
Installation and maintenance of both standard and custom-made air-supported, cable supported or rigid frame-supported roofs or roof sections, skylights, awnings and commercial umbrellas, containing fabric-like or membrane-like flexible materials, including metal materials, as an integral part of the structure; roof service contract service, namely, replacement of defective or damaged roofs, construction of rigid frame-supported roofs or roof sections as part of a structure
40
Custom construction of both standard and custom-made air-supported, cable supported skylights, awnings and commercial umbrellas, containing fabric-like or membrane-like flexible materials, including metal materials, as an integral part of the structure
42
Design, engineering, inspection of both standard and custom-made air-supported, cable supported skylights, awnings and commercial umbrellas, containing fabric-like or membrane-like flexible materials, including metal materials, as an integral part of the structure
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