????????????????? ?????????????????? ???????????????????? ???? ??????????????????????????? (??.1 ??.2) ??????????????????????????????????????????????? ?????????????????? ??????????? ????????????? ??????????????????????????????????????????????????????????????????????????????????????????????????(???????????????) ?????????????????? 3 ??
ทำความรู้จัก 4 รูปเเบบของระบบเคลือบผิวหน้าด้วยวัสดุอีพ็อกซี่
????????????????? ?????????? ????????? ??????????????????????????????????????????-??? ??????????????????????????????????? ????????????????????????????????? ???????????????? ??? ???????????????????????????????????????????????????????? ?????????????????????????????????????????? ???? ???????? ????????????????????????????? ?????????????????? ??????