2023??9??18???19???????????ó??????CITT????????????????CBSA??????????棬??????????????й?????????????????Seamless Casing??????????η???????????????臨????顣?永???????е?????????????????????????11.75 ??磨298.5 ?????????????????????????????????????б?楨????????????????????????????????????????Э?????????淶??? API 5CT???永??????????????2022??1??1?????7304.29.00.11??7304.29.00.19??7304.29.00.21??7304.29.00.29??2022??1??1??????7304.29.00.12??7304.29.00.13??7304.29.00.14??7304.29.00.15??7304.29.00.16??7304.29.00.17??7304.29.00.19??7304.29.00.22??7304.29.00.23??7304.29.00.24??7304.29.00.25??7304.29.00.26??7304.29.00.27??7304.29.00.29?????????????2023??10??26????????????臨???????????????????????????????2024??2??15???????????臨???????????á?

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