GB/T 45488-2025 Chinese PDF (GB /T45488-2025) GB/T 31814-2024 GB/T 44977-2024_Chinese: Specification for security

GB/T 44977-2024_Chinese: Specification for security of positioning service terminal of reference stations using global navigation satellite system (Chinese: 卫星导航定位基准站网终端定位服务安全技术规范)

GB/T 20991-2024_Chinese: Foot protection - Test methods for footwear (Chinese: 足部防护 鞋的测试方法)

English versions: GB/T 44925-2024

English versions: GB/T 21044-2024

GB/T 45269-2025_Chinese: Footwear - Test methods for whole shoe - Flexing durability (Chinese: 鞋类 整鞋试验方法 耐屈挠性能)

GB/T 45488-2025 Chinese PDF (GB /T45488-2025) GB/T 31814-2024 GB/T 44977-2024_Chinese: Specification for securityGB T 45488 2025_Chinese: Ships and marine technology Fireproof watertight hatch covers (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45488 2025