What is the construction method used for a tubular web where two layers are stitched together?

The construction method known as the needle loom technique is employed specifically to create a tubular web by stitching together two layers of material. This method utilizes a specialized needle loom that allows for precision stitching, resulting in a strong and durable fabric structure. The process involves interlocking the threads in a way that enhances the integrity and performance of the webbing, making it suitable for various applications, including safety and rescue operations in confined spaces.

Other methods mentioned, such as the rope weave, braid method, and knotted design, do not involve the same technique of stitching two distinct layers together. The rope weave typically relates to braiding or intertwining fibers or strands rather than stitching, while the braid method focuses on the intertwining of individual strands to form a larger structure. The knotted design involves tying knots to create patterns or structures, which is fundamentally different from the stitching process of the needle loom. Thus, the needle loom method is the correct construction method for creating a tubular web in this context.