GB/T 11420-2024 Chinese PDF (GB/T11420-2024) GB/T 45211.1-2025 English versions: GB/T 45394-2025

English versions: GB/T 45394-2025

GB/T 45306-2025_Chinese: Railway applications - Power supply with onboard energy storage system for rolling stock - Series hybrid system (Chinese: 轨道交通 机车车辆车载储能供电 串联混合动力系统)

GB/T 45134-2025_Chinese: Petroleum drilling and production equipment - Near-bit geosteering drilling systems (Chinese: 石油天然气钻采设备 近钻头地质导向钻井系统)

English versions: GB/T 150

GB/T 14478-2025_Chinese: Basic technical specification of inlet valves for large and medium-sized hydraulic turbines (Chinese: 大中型水轮机进水阀门基本技术规范)

GB/T 11420-2024 Chinese PDF (GB/T11420-2024) GB/T 45211.1-2025 English versions: GB/T 45394-2025GB T 11420 2024_Chinese: Vitreous and porcelain enamels Test method of specular glossiness (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 11420 2024