เทคโนโลยีเจาะเสาเข็มแห้ง
??????????????? ???? ??????? ??????????? ?????????????? ??? ??????? ??? ???????? ???????????
?????????? ???????? ???????????????? ????????????? ????????? ??????????????? ??? ????? ?????? ????????????????????
???????????????????? vs. ??????????????????
?????? ??????????????????????? ??????? ????