GB/T 24986.6-2024 Chinese PDF (GB/T24986.6-2024) GB 5842-2023 English versions: GB/T 31961-2024

English versions: GB/T 31961-2024

English versions: GB/T 45244-2025

English versions: GB/T 43300-2023

1-2025_Chinese: Optics and photonics - Specifications for telescopic sights - Part 1: General-purpose instruments (Chinese: 光学和光子学 瞄准望远镜规范 第 1 部分：普通性能仪器)

English versions: GB/T 42558

GB/T 24986.6-2024 Chinese PDF (GB/T24986.6-2024) GB 5842-2023 English versions: GB/T 31961-2024GB T 24986. 6 2024_Chinese: Testing evaluation methods for reliability on household and similar electrical appliances Part 6: Particular requirements for air cleaner (Chinese: 6) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24986. 6 2024