GB/T 27995.2-2025 Chinese PDF (GB /T27995.2-2025) GB/T 1232.2-2025 GB/T 20604-2025_Chinese: Natural gas -

GB/T 20604-2025_Chinese: Natural gas - Vocabulary (Chinese: 天然气 词汇)

English versions: GB 38031-2025

GB/T 15604-2024_Chinese: Terminology for dust explosion prevention and protection (Chinese: 粉尘防爆术语)

GB/T 24055

GB/T 23327-2025_Chinese: Woven adhesive interlining (Chinese: 机织粘合衬)

GB/T 27995.2-2025 Chinese PDF (GB /T27995.2-2025) GB/T 1232.2-2025 GB/T 20604-2025_Chinese: Natural gas -GB T 27995. 2 2025_Chinese: Semi finished spectacle lens blanks Part 2: Power variation (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 27995. 2 2025