"粗斜条棉布" can be translated as "coarse twill cotton fabric" or "heavy twill cotton cloth".
"Coarse" conveys the idea of a rough or thick texture.
"Twill" refers to the specific weave pattern (斜条纹/斜纹 in Chinese).
"Cotton fabric" or "cotton cloth" indicates the material.
If the term emphasizes a heavier or more durable quality (e.g., for workwear), "heavy twill cotton" might be more appropriate. For general contexts, "coarse twill cotton fabric" works well.