GB/T 1231-2024 Chinese PDF (GB/T1231-2024)GB T 1231 2024_Chinese: High strength bolts with large hexagon head assemblies for steel structures (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 1231 2024
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GB/T 1231-2024_Chinese: High strength bolts with large hexagon head assemblies for steel structures (Chinese: 钢结构用高强度大六角头螺栓连接副) Note/Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working-hours typically, ASAP English versions: GB/T 1231-2024