????????????????? ?????????? ????????? ??????????????????????????????????????????-??? ??????????????????????????????????? ????????????????????????????????? ???????????????? ??? ???????????????????????????????????????????????????????? ?????????????????????????????????????????? ???? ???????? ????????????????????????????? ?????????????????? ??????
ฟิล์มหด (Shrink Roll) กับฟิล์มยืด (Stretch Film) เเตกต่างกันอย่างไร
????????????????????? ??????????????????????????????????????? ??????????????????????????????????????????????????????????????????????????????????????????????????? ???????????????? ????????????????????? ???????????????????????????????? ????????????????????????? ?????????????????????????? ??????????????????? ???????????????????????????? ???