GB/T 22789.1-2023 Rigid polyvinyl chloride sheets (sheets) for plastic products Part 1: Classification, dimensions and properties of sheets with thickness 1 mm and above (English Version)
2023GB/T 22789.1-2023 Rigid polyvinyl chloride sheets (sheets) for plastic products Part 1: Classification, dimensions and properties of sheets with thickness 1 mm and above
2008GB/T 22789.1-2008 Plastics.Unplasticized poly(vinyl chloride) sheets.Types,dimensions and characteristics.Part 1:Sheets of thickness not less than 1 mm