"结实的带状织物" can be translated as "sturdy band-shaped fabric" or "durable ribbon-like fabric".
"Sturdy" emphasizes robustness and strength.
"Durable" highlights long-lasting quality.
"Band-shaped" or "ribbon-like" describes its form as a strip or band.
Choose based on context (e.g., technical specifications vs. general description). For industrial use, "heavy-duty webbing" (if referring to straps or belts) might also fit.