2022??8??3???????????ó??????CITT?????????棬??????????????й?????????????????????Welded Large Diameter Carbon and Alloy Steel Line Pipe???????????????臨????????á????й??永????????????????臨?????????????????????з??????????????????永????????????????????????????????????????????? 2016 ?? 10 ?? 20 ???? NQ-2016-001 ???????????????y????????Ч??2021??2??4?????永????????????7305.11.00.22??7305.11.00.23??7305.11.00.24??7305.11.00.25??7305.12.00.21??7305.12.00.22??7305.12.00.23??7305.12.00.24??7305.19.00.22??7305.19.00.23??7305.19.00.24??7305.19.00.25????2021??2??4????????????????????永????????????7305.11.00.41??7305.11.00.42??7305.11.00.43??7305.11.00.44??7305.11.00.49??7305.12.00.41??7305.12.00.42??7305.12.00.43??7305.12.00.44??7305.12.00.49??7305.19.00.22??7305.19.00.23??7305.19.00.24??7305.19.00.25??

2016??3??24?????????????????????й??????????????????????з????????飬??????????????й????永??????з????????顣2016??9??20?????????????????????????????й?????????永????????????????????????????????????й????永????????????????????á?2021??9??27???28???????????ó?????????????????????????棬??????????????й??????????????????????е???η????????臨????飬????????й?????????????????е???η????????臨????顣2022??2??24?????????????????????????????й????????????????????????????η????????臨??????????????й???????????????????????η????????臨????á?

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https://decisions.citt-tcce.gc.ca/citt-tcce/a/en/item/520966/index.do?q=welded+large+diameter