GB/T 41666.4-2024 Chinese PDF (GB/T41666.4-2024)GB T 41666. 4 2024_Chinese: Plastics piping systems for renovation of underground non pressure drainage and sewerage networks Part 4: Lining with cured in place pipes (Chinese: 4 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 41666. 4 2024
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