This standard specifies the technical requirements, inspection, marking, packaging and storage of non-metallic flat gaskets for pipe flanges. This standard applies to non-metallic flat gaskets for pipe flanges specified in GB/T 9126.
GB/T 9129-2003 history
2003GB/T 9129-2003 Specifications of Non-metallic flat gaskets for pipe flanges
0000年 GB/T 9129-1988
GB/T 9129-2003 Specifications of Non-metallic flat gaskets for pipe flanges was changed to GB/T 9126.1-2023 Non-metallic flat gaskets for pipe flanges Part 1: PN series.