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GB/T 45182-2025_Chinese: Test procedures of gasket parameters based on leakage rate for the pipe flange joints (Chinese: 基于泄漏率的管法兰用垫片参数测试方法) Note/Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working-hours typically, ASAP English versions: GB/T 45182-2025
