Borusan Birlesik Boru Fabrikalari Sanayi ve Ticaret A.S. manufactures, produces, and sells steel pipes in Turkey. It offers spiral (helical) welded pipes, LSAW and ERW line pipes, ERW natural gas pipes, industrial pipes and profiles, water pipes, construction pipes and profiles, SRM installation pipes, hydraulic cylinder pipes, cold drawn pipes, advanced processed pipes, precision pipes and profiles, and OCTG pipes. The company also exports its products. It serves water, construction, industrial, automotive, and energy applications. The company was formerly known as Borusan Mannesmann Boru Sanayi ve Ticaret A.S. and changed its name to Borusan Birlesik Boru Fabrikalari Sanayi ve Ticaret A.S. in November 2023. The company was incorporated in 1958 and is headquartered in Istanbul, Turkey. Borusan Birlesik Boru Fabrikalari Sanayi ve Ticaret A.S. is a subsidiary of BMB Holding A.S.