T/ZZB 2137-2021
Portable steel pipe folding ladder (English Version)
- Standard No.
- T/ZZB 2137-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/ZZB 2137-2021
- Scope
- This document stipulates the terms and definitions, product classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitment of portable steel pipe folding ladders. This document applies to portable steel tube folding ladders (hereinafter referred to as "ladders") with a total ladder length ≦6 000 mm and a number of steps ≦5.
T/ZZB 2137-2021 history
- 2021 T/ZZB 2137-2021 Portable steel pipe folding ladder
