????????????????? ?????????????????? ????????????????? (Overhaul) ??????????????? ????????????????????????????????????? ?????????????????????????????????? ??????????????????????????????????????????????? ??????????? ?????????????????????????????????????????????????? ????????????????????????????????????????? ????????????????????????????????
ระบบเคลือบผิวหน้าด้วยด้วยโพลียูรีเทน (Polyurethane) ดีอย่างไร
???????????????????????????????? ???????????? ???????????????? ????????????????????? ??????????????? ????????????????????????? (?????????????? -40 ???????????? ??? 140 ????????????) ??????????????????????????????????????????????????? ????? ???????????????????????????????? ??????????????????????????????????? ?????????????? ??????????????