Specifies the laminate type (as defined in the BS 7159 code) of fiberglass reinforced plastic (FRP) pipe.
CSM and Woven Roving
Chopped strand mat (CSM) and woven roving (WR) construction with internal and external surface tissue reinforced layer.
CSM and Multi-filament
Chopped strand mat and multi-filament roving construction with internal and external surface tissue reinforced layer.
CSM
All chopped strand mat construction with internal and external surface tissue reinforced layer.