KS M 3370-2015 Plastics piping systems for water supply — Glass reinforced thermosetting plastics(GRP) based on unsaturated polyester(UP) resin — Pressure and non-pressure piping system
2020KS M 3370-2020 Plastics piping systems for water supply — Glass reinforced thermosetting plastics(GRP) based on unsaturated polyester(UP) resin — Pressure and non-pressure piping system
2015KS M 3370-2015 Plastics piping systems for water supply — Glass reinforced thermosetting plastics(GRP) based on unsaturated polyester(UP) resin — Pressure and non-pressure piping system
2013KS M 3370-2013 Plastics piping systems for pressure and non-pressure water supply ?; Glass reinforced thermosetting plastics(GRP) systems based on unsaturated polyester(UP) resin
2011KS M 3370-2011 Plastics piping systems for pressure and non-pressure water supply-Glass reinforced thermosetting plastics(GRP) systems based on unsaturated polyester(UP) resin