Texture problem from Blender to Unity

I can prepare the texture of an object created with blender in blender and I do not have any problems, but when I add a texture to it when I add it to Unity, part of the texture stretches. The repeat option is active. I tried other options, but there is something I cannot understand.

Please help me with this

thank you very much.

Can you show you UV mapping from blender? And how does other textures react? Is your pipe thing Rigged?