This standard specifies the terms and definitions, basic requirements, technical requirements, test methods, inspection rules, judgment rules, marking, packaging, transportation and storage, and quality commitments of timing tooth chains for automobile engines (hereinafter referred to as tooth chains). This standard applies to toothed chains for automobile engines.
T/ZZB 1724-2020 history
2020T/ZZB 1724-2020 Timing toothed chain for automobile engine