GB/T 21833.3-2024 Chinese PDF (GB/T21833.3-2024) GB/T 12540-2024 GB/T 42968

GB/T 42968

GB/T 44939-2024_Chinese: Guidelines for quality grading of consumer products - Footwear (Chinese: 消费品质量分级导则 鞋类)

4-2025_Chinese: Instruments for stage measurement - Part 4: Ultrasonic stage recorder (Chinese: 水位测量仪器 第4部分：超声波水位计)

English versions: GB/T 23528

1-2025_Chinese: Non-destructive testing of heavy duty gas turbine blades and vanes - Part 1: Radiographic testing (Chinese: 重型燃气轮机叶片无损检测 第1部分：射线检测)

GB/T 21833.3-2024 Chinese PDF (GB/T21833.3-2024) GB/T 12540-2024 GB/T 42968GB T 21833. 3 2024_Chinese: Seamless austenitic ferritic(duplex) stainless steel tubes and pipes Part 3: Pipes for oil and gas transmission (Chinese: 3) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21833. 3 2024