Enter the laminate type (as defined in the BS 7159 code) of the fiberglass reinforced plastic pipe used. Valid laminate types are:
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.