2022??3??17???????ó??????????2022-3????棨?????????23-2021-6?????????????й??????????????Seamless Copper Pipes and Tubes?????????????????????????????????????飬??????й???????永????????????????????永????????????7411.10.0000??

2021??10??29???????????????й?????????????????????????????顣

?????????????ó???????????

?????賤???

??????У???

????

https://www.ktc.go.kr/procFileDownload.do?invstg_mast_id=00000741&invstg_seq_no=0014&seq_no=0001