เทคโนโลยีเจาะเสาเข็มแห้ง
??????????????? ???? ????????? ??????????? ?????????????? ??? ??????? ??? ?????????? ???????????
?????????? ???????? ???????????????? ????????????? ????????? ??????????????? ??? ???????? ?????????? ??????????????? ????????????????????
?????????????? Dry vs. ?????????????? Wet
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