Polyvinyl chloride glass-reinforced polyester is a “dual laminate” piping system where a high chemical resistance liner is combined with a glass fibre reinforced outer shell. The reinforced outer shell ensures a higher pressure resistance and better mechanical properties. The PVC-C/GRP materials are produced in accordance with the DIN 16965/16966 design standard. A PVC-C piping system is often used for the following media: Caustic soda, sodium hypochlorite, hydrochloric acid, sulphuric acid, phosphoric acid and nitric acid.