GB/T 24021-2024 Chinese PDF (GB/T24021-2024) GB/T 29479.1-2025 34-2024_Chinese: Safety of household and

34-2024_Chinese: Safety of household and similar electrical appliances - Part 34: Particular requirements for commercial electric forced convection ovens

7-2024_Chinese: Methods for chemical analysis of nickel alloys - Part 7: Determination of cobalt

GB/T 39077-2024_Chinese: Test methods for detecting detrimental phase in austenitic-ferritic(duplex) stainless steels (Chinese: 奥氏体-铁素体（双相）不锈钢中有害相的检测方法)

GB/T 20014

4-2023_Chinese: Photobiological safety of lamps and lamp systems - Part 4: Measuring methods (Chinese: 灯和灯系统的光生物安全 第4部分：测量方法)

GB/T 24021-2024 Chinese PDF (GB/T24021-2024) GB/T 29479.1-2025 34-2024_Chinese: Safety of household andGB T 24021 2024_Chinese: Environmental management Environmental labels and declarations Self declared environmental claims (Type II environmental labelling) (Chinese: II) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24021 2024