Those pipe are widely used in sewer, electricity and tele-communication cables, drainage for airport and railway projects irrigation pipes, etc.
电缆导管、机场道路和铁路排水管、低孔灌溉输水管。
Those pipe are widely used in sewer, electricity and tele-communication cables, drainage for airport and railway projects irrigation pipes, etc.
电缆导管、机场道路和铁路排水管、低孔灌溉输水管。
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