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English versions: GB/T 21220-2024
GB/T 28589-2024_Chinese: Geographic information - Positioning services (Chinese: 地理信息 定位服务)
GB/T 45311-2025_Chinese: Tidal energy converter - Sea trial technical requirements (Chinese: 潮流能转换装置 海上试验技术要求)
English versions: GB/T 45387-2025
English versions: GB/T 144-2024
GB/T 30757-2024 Chinese PDF (GB/T30757-2024) GB/T 44909-2024 English versions: GB/T 21220-2024GB T 30757 2024_Chinese: Classification of basic dense shaped refractory products containing from 7% to 50% carbon (Chinese: 7%50%) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 30757 2024
US$ 145.00
US$ 159.95
US$ 1349.50
US$ 1499.50
US$ 29.90
US$ 3999.50
