GB/T 21551.1-2024 Chinese PDF (GB /T21551.1-2024) GB/T 23453-2025 1-2025_Chinese: Plastics - Determination of

1-2025_Chinese: Plastics - Determination of temperature of deflection under load - Part 1: General test method (Chinese: 塑料 负荷变形温度的测定 第1部分：通用试验方法)

64-2025_Chinese: Liquid crystal display devices - Part 6-4: Test methods - Liquid crystal displaymodules with dynamic backlight units (Chinese: 液晶显示器件 第6-4 部分：测试方法 带动态背光的液晶显示模块)

English versions: GB/T 17215

GB 11555-2025_Chinese: Technical specification for demisting and defrosting systems of motor vehicles-windshield (Chinese: 汽车风窗玻璃除霜和除雾系统技术规范)

English versions: GB/T 21196

GB/T 21551.1-2024 Chinese PDF (GB /T21551.1-2024) GB/T 23453-2025 1-2025_Chinese: Plastics - Determination ofGB T 21551. 1 2024_Chinese: Antimicrobial and cleaning function of household and similar electrical appliances Part 1: General requirement (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 21551. 1 2024