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[Feature] GFRC domes by Stromberg are environmentally friendly [Benefit] The main ingredients of GFRC are based on the plentiful and naturally occurring minerals. These natural materials are not normally regarded as pollutants. GFRC itself is a stable mineral based material, and is inert. [Advantage] 
Environmentally friendly.
GFRC (Glass Fiber Reinforced Concrete) Domes by Stromberg Architectural Products
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