?????????????????????????????????????????? ????????????????????? ?????????? ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ????????????????????????????????????????????? ?????????????????? (Insulated Bear
มาทำความรู้จักกับเหล็กเส้นไฟเบอร์กลาส (GFRP) กันเถอะ
???????????????????? (GFRP) ??????? ???????????????????? ???? ???????????????????????? (Glass Fiber Reinforced Polymer) ????????????????????????????????????????????????????????????? ???????? ???????????????????? (GFRP ???????) ???????????????????????????????????????????????????????? ??????????????????????????????????????????????????????????