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English versions: GB/T 45137-2024
GB/T 45016-2024_Chinese: Test methods for mechanical automatic tensioner of accessory belt drive system of engine (Chinese: 发动机附件带传动系统机械式自动张紧轮试验方法)
GB/T 34430
GB/T 3920-2024_Chinese: Textiles - Tests for colour fastness - Colour fastness to rubbing (Chinese: 纺织品 色牢度试验 耐摩擦色牢度)
GB/T 320-2025_Chinese: Synthetic hydrochloric acid for industrial use (Chinese: 工业用合成盐酸)
GB/T 45270-2025 Chinese PDF (GB /T45270-2025) GB/T 44910-2024 English versions: GB/T 45137-2024GB T 45270 2025_Chinese: Man made fibre Test method for tensile properties of short cut fibre (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45270 2025
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