Yapı ve İnşaat İhracat İlanları, Yapı ve İnşaat Alanında İhracat Alım İlanları Listesi

I am looking for a company that creates/manufactures concrete gutters

We are looking for manucture of Siphonic Rainwater Drainage System. Please find enclosed pic, we are looking for same.

I am looking for a company specialized in the field of rainwater drainage to reduce puddles of water from the streets