2021??4??16???????????ó??????ITC????????????й???????????????Non-Refillable Steel Cylinders?????????????????????????????????????????????????????????????????永?????????????????????????????????β???У?5??????ó?????????????????????????????ó????????????????????????????????永???????????????????????????????漰????Э????????7311.00.0060??7311.00.0090???μ?????

2020??4??17???????????????????????Worthington Industries????2020??3??27??????????????????????????????й???????????????????????????????????顣2020??5??8???????????ó????????????????й??????????????????????????????????????????á?2020??8??25???????????????????????й??????????????????????????????á?2020??10??26???????????????????????й??????????????????????????????á?2021??3??16???????????????????????й?????????????????????????????????????á?

?????????????????ó???????????

????????????

??????У???

????https://www.usitc.gov/press_room/news_release/2021/er0416ll1755.htm