GB/T 19964-2024 Chinese PDF (GB/T19964-2024) GB/T 21551.5-2024 GB/T 33993-2024_Chinese: Two dimensional code

GB/T 33993-2024_Chinese: Two dimensional code for commodity (Chinese: 商品二维码)

GB/T 44954-2024_Chinese: Technical specification for lightning disaster prevention in mountain areas (Chinese: 山岳地区雷电灾害防御技术规范)

English versions: GB/T 33588

1-2023_Chinese: [Including 2025XG1] Controlgear for electric light sources - Part 1: General and safety requirements (Chinese: 光源控制装置 第 1 部分:一般要求和安全要求)

English versions: GB/T 44988-2024

GB/T 19964-2024 Chinese PDF (GB/T19964-2024) GB/T 21551.5-2024 GB/T 33993-2024_Chinese: Two dimensional codeGB T 19964 2024_Chinese: Technical requirements for connecting photovoltaic power station to power system (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19964 2024