GB/T 45390-2025 Chinese PDF (GB /T45390-2025) GB/T 45213-2025 2-2025_Chinese: Metallic materials - Vickers

2-2025_Chinese: Metallic materials - Vickers hardness test - Part 2: Verification and calibration of testing machines (Chinese: 金属材料 维氏硬度试验 第2部分：硬度计的检验与校准)

GB/T 45355-2025_Chinese: Polyethylene(PE) piping systems for non-pressure buried drainage and sewerage (Chinese: 无压埋地排污、排水用聚乙烯（PE）管道系统)

English versions: GB/T 25105

GB/T 44935-2024_Chinese: Nanotechnologies - Measurement of the number of layers of MoS2 flakes - Raman spectroscopy method (Chinese: 纳米技术 二硫化钼薄片的层数测量 拉曼光谱法)

GB/T 45390-2025 Chinese PDF (GB /T45390-2025) GB/T 45213-2025 2-2025_Chinese: Metallic materials - VickersGB T 45390 2025_Chinese: Communication interface requirements for power lithium battery production equipment (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45390 2025