问:哪里下载ISO 24023-1 2020 Plastics — Plasticized poly(vinyl chloride) (PVC-P) moulding and extrusion materials — Part 1 Designation system and basis for specifications答:请联系微信:siduwenku
ISO 24023-1 2020 Plastics — Plasticized poly(vinyl chloride) (PVC-P) moulding and extrusion materials — Part 1 Designation system and basis for specifications