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English versions: GB/T 45482-2025
GB/T 45131-2025_Chinese: Analysis of water used in boiler and cooling system - Determination of phosphate
English versions: GB/T 10816-2024
2-2025_Chinese: Optics and photonics - Specifications for telescopic sights - Part 2: High-performance instruments (Chinese: 光学和光子学 瞄准望远镜规范 第 2 部分：高性能仪器)
English versions: GB/T 45177-2024
GB 20128-2024 Chinese PDF GB/T 19480-2025 English versions: GB/T 45482-2025GB 20128 2024_Chinese: Inert gas extinguishing agent (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 20128 2024
