Materials for Water treatment plants importing Poland

We're manufacturer of biological wastewater treatment plants and we make it from GRP in our factory in Poland. Now I'm looking for new source of materials.

1) DCPD Based Accelerated Polyester structural resin

2) Reinforcement glass fabric, roving mat E600g/m2 2/2 or 1/1 weave 125cm wide (50kg roll)

3) Emulsion glass mat 450g/m2 125cm wide roll