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GB/T 19799.3-2025 Chinese PDF (GB /T19799.3-2025) GB/T 19405.3-2025 English versions: GB/T 11918
GB/T 19799.3-2025 Chinese PDF (GB /T19799.3-2025) GB/T 19405.3-2025 English versions: GB/T 11918
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Description
English versions: GB/T 11918
3-2025_Chinese: Types and dimensions of lamp caps - Part 3: Prefocus caps (Chinese: 灯头的型式和尺寸 第3部分：预聚焦式灯头)
English versions: GB/T 21200-2024
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)
Note/Careful: Text of PDF is in Chinese (not English)
GB/T 19799.3-2025 Chinese PDF (GB /T19799.3-2025) GB/T 19405.3-2025 English versions: GB/T 11918GB T 19799. 3 2025_Chinese: Non destructive testing Ultrasonic testing block Part 3: Calibration block for curved surface (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19799. 3 2025
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