GB/T 5069-2024 Chinese PDF (GB/T5069-2024) GB/T 18216.7-2024 GB/T 33665-2023_Chinese: Technical requirements and

GB/T 33665-2023_Chinese: Technical requirements and detecting method of audio and video for digital publication (Chinese: 数字出版物声频视频技术要求及检测方法)

3-2023_Chinese: Lead-acid starter batteries - Part 3: Kinds of products and specifications and dimensions and marking of terminals for heavy vehicles (Chinese: 起动用铅酸蓄电池 第3部分：重载车辆产品品种规格和端子尺寸)

English versions: GB/T 21551

1-2024_Chinese: Optics and photonics - Optical coatings - Part 1: Vocabulary (Chinese: 光学和光子学 光学薄膜 第1部分：术语)

GB/T 5069-2024 Chinese PDF (GB/T5069-2024) GB/T 18216.7-2024 GB/T 33665-2023_Chinese: Technical requirements andGB T 5069 2024_Chinese: Chemical analysis of magnesia alumina refractories (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5069 2024