GB/T 19396-2025 Chinese PDF (GB /T19396-2025) GB 45188-2024 English versions: GB/T 22320-2025

English versions: GB/T 22320-2025

English versions: GB/T 16702

power supply units and combinations thereof - Part 14: Particular requirements and tests for auto-transformers and power supply units incorporating auto-transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第14部分：一般用途自耦变压器和内装自耦变压器的电源装置的特殊要求和试验)

English versions: GB/T 19183

GB 23394-2024_Chinese: Respiratory protection - Positive pressure self-contained closed-circuit compressed oxygen breathing apparatus (Chinese: 呼吸防护 正压式自给闭路压缩氧气呼吸器)

GB/T 19396-2025 Chinese PDF (GB /T19396-2025) GB 45188-2024 English versions: GB/T 22320-2025GB T 19396 2025_Chinese: Terbium dysprosium iron magnetostrictive materials (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19396 2025