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English versions: GB/T 20604-2025
GB/T 20236-2025_Chinese: Accelerated outdoor weathering test methods for nonmetallic materials using concentrated natural sunlight (Chinese: 非金属材料的聚光加速户外暴露试验方法)
English versions: GB/T 22369-2024
GB/T 20972
GB/T 22371-2024 Chinese PDF (GB /T22371-2024) GB 19081-2025 English versions: GB/T 20604-2025GB T 22371 2024_Chinese: Environmental protection requirements for facsimile machines and multi function composite facsimile machines (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 22371 2024
US$ 19.95
US$ 14.95
US$ 19.95
