GB/T 29168.4-2024 Chinese PDF (GB/T29168.4-2024)GB T 29168. 4 2024_Chinese: Petroleum and natural gas industries Bends, fittings and flanges for pipeline transportation systems Part 4: Cold bends (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 29168. 4 2024
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