GB/T 4437.1-2023 Chinese PDF (GB/T4437.1-2023) GB/T 17359-2023

GB/T 4437.1-2023 Chinese PDF (GB/T4437.1-2023) GB/T 17359-2023GB T 4437. 1 2023_Chinese: Aluminium and aluminium alloys extruded tubes Part 1: Seamless tubes (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 4437. 1 2023

GB/T 45037-2024_Chinese: Grain and oil machinery - Grain scraper (Chinese: 粮油机械 扒谷机)

GB/T 10841-2025_Chinese: Marine shapes (Chinese: 船用号型)

storage pumps and pump-turbines (Chinese: 水轮机、蓄能泵和水泵水轮机更新改造和性能改善导则)

99-2024_Chinese: Safety of household and similar electrical appliances - Part 99: Particular requirements for thermal-storage hand warmers (Chinese: 家用和类似用途电器的安全 第99部分：储热式电热暖手器的特殊要求)

GB/T 20882

English versions: GB/T 13210-2024

GB/T 20340

GB/T 19964-2024_Chinese: Technical requirements for connecting photovoltaic power station to power system (Chinese: 光伏发电站接入电力系统技术规定)

12-2024_Chinese: Nondestructive testing of amusement equipment - Part 12: Phase-array ultrasonic testing methods for bolts (Chinese: 游乐设施无损检测 第12部分：螺栓相控阵超声检测)

English versions: GB/T 38055

GB/T 17529

GB/T 45453-2025_Chinese: Packaging - Tamper verification features for medicinal product packaging (Chinese: 包装 药品包装的篡改验证特性)