... , hydraulic pipes, coated an uncoated pipes;3. We can make moulds in other specification according to customers' requirements.Technical parameters: ModelMax. pressure ... .3-88.51/2”,3/4”,1”,11/4”,11/2”.2”,21/2”,3”2.75-511293*40*21HHW-4F2137021.3-1081/2”,3/4”,1”,11/4”,11/2”.2”,21/2”,3 ... ”,4”2 ...