KS M ISO 19063-1-2017(2022) Plastics ㅡ Impact-resistant polystyrene (PS-I) moulding and extrusion materials ㅡ Part 1: Designation system and basis for specifications
2017KS M ISO 19063-1:2017 Plastics ㅡ Impact-resistant polystyrene (PS-I) moulding and extrusion materials ㅡ Part 1: Designation system and basis for specifications