... weld 3, size: 1/2"-72" 4, standard: ANSI, hydraulic forged tee fittings Widely used in the connection of the industrial pipelines ... , Gas and Oil pipes, Electrical Power, Food, etc.Type:Equal Tee ,butt welded and seamless. (others)Used for : petroleum,chemical,power ... .ISO certificate : ISO 9001:2008Marking :according to client's requirement. hydraulic cold forged tee fittings