3D hollow woven fabric is a kind of high strength fabric woven by basalt fine yarn. The fabric structure is composed of X and 8 figure by connecting two layers to form a hollow structure with excellent spatial stability. Thickness 2mm~30mm, suitable for a variety of resin reinforcement systems, such as unsaturated polyester resin, vinyl resin and epoxy resin. It is also used in hand paste products such as ships, automotive parts, rail transit, double-walled tanks, sports facilities and other applications. We can also supply fiberglass 3D fabric