GB/T 23921-2023 Chinese PDF (GB/T23921-2023) GB/T 21833.3-2024 1-2024_Chinese: Geometrical product specifications(GPS) -

1-2024_Chinese: Geometrical product specifications(GPS) - Roundness - Part 1: Vocabulary and parameters of roundness (Chinese: 产品几何技术规范（GPS） 圆度 第1部分:词汇和参数)

English versions: GB/T 45119-2024

117-2024_Chinese: Safety of household and similar electrical appliances - Part 117: Particular requirements for electric ondol mattress with a non-flexible heated part (Chinese: 家用和类似用途电器的安全 第117部分：带非柔性加热部件的电暖床垫的特殊要求)

English versions: GB/T 20195-2024

GB/T 45231-2025_Chinese: Intelligent bed (Chinese: 智能床)

GB/T 23921-2023 Chinese PDF (GB/T23921-2023) GB/T 21833.3-2024 1-2024_Chinese: Geometrical product specifications(GPS) -GB T 23921 2023_Chinese: Tri wheel vehicles Axle shaft (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23921 2023