GB/T 18688-2023 Chinese PDF (GB/T18688-2023) GB/T 1231-2024 GB/T 27030-2025_Chinese: Conformity assessment -

GB/T 27030-2025_Chinese: Conformity assessment - General requirements for third-party marks of conformity (Chinese: 合格评定 第三方符合性标志的通用要求)

GB/T 45314-2025_Chinese: Road vehicles - Performance requirements and test methods for hands free communication and voice interaction (Chinese: 道路车辆 免提通话和语音交互性能要求及试验方法)

GB/T 13217

English versions: GB/T 10894-2023

GB/T 18688-2023 Chinese PDF (GB/T18688-2023) GB/T 1231-2024 GB/T 27030-2025_Chinese: Conformity assessment -GB T 18688 2023_Chinese: Agricultural irrigation equipment Pressure losses in irrigation valves Test method (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18688 2023