GB/T 26849-2025 Chinese PDF (GB /T26849-2025) GB/T 20725-2025 GB/T 22107-2025_Chinese: Pneumatic fluid power

GB/T 22107-2025_Chinese: Pneumatic fluid power - Directional control valves - Measurement of shifting time (Chinese: 气动 方向控制阀 切换时间的测量)

1-2025_Chinese: Plastics - Impact-resistant polystyrene(PS-I) moulding and extrusion materials - Part 1: Designation system and basis for specifications (Chinese: 塑料 抗冲击聚苯乙烯（PS-I）模塑和挤出材料 第1部分：命名系统和分类基础)

English versions: GB 20072-2024

13-2025_Chinese: Forensic sciences - Physical and chemical examination of trace evidence - Part 13: Wavelength dispersive X-ray fluorescence spectrometry (Chinese: 法庭科学 微量物证的理化检验 第13部分：波长色散X射线荧光光谱法)

GB/T 26849-2025 Chinese PDF (GB /T26849-2025) GB/T 20725-2025 GB/T 22107-2025_Chinese: Pneumatic fluid powerGB T 26849 2025_Chinese: Electronic control gear for solar photovoltaic (PV) lighting Performance specifications (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 26849 2025