GRP is used for ballast water pipes, but GRE is used in seawater pipelines. These two kinds of pipes are used more and more, but what is the difference between the specific applications?
FRP is the general term for glass fiber reinforced composite materials, that is, the general term for glass fiber reinforced plastics, which contains GRE and GRP.
http://www.topskyfrp.com/frp-p....ultruded-round-pipe/
