GB/T 18449.1-2024 Chinese PDF (GB/T18449.1-2024) GB/T 24578-2024 GB/T 37507-2025_Chinese: Project

GB/T 37507-2025_Chinese: Project

GB/T 14020-2024_Chinese: Hydrogenated rosin (Chinese: 氢化松香)

GB/T 20656-2023_Chinese: Petroleum and natural gas industries - Field inspection of new casing

GB/T 14271-2024_Chinese: Test method for the yield of greasy wool and raw cashmere - Oil pressure method (Chinese: 毛绒洗净率试验方法 油压法)

GBZ45260-2025_Chinese: Course development guide for education about standardization - Green manufacturing standardization (Chinese: 标准化教育课程建设指南 绿色制造标准化)

GB/T 18449.1-2024 Chinese PDF (GB/T18449.1-2024) GB/T 24578-2024 GB/T 37507-2025_Chinese: ProjectGB T 18449. 1 2024_Chinese: Metallic materials Knoop hardness test Part 1: Test method (Chinese: 1: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18449. 1 2024