เทคนิคการเย็บ backdrop ผ้า
????????Backdrop ?????/????? ???????????????????????????? ????? ?????/???/?? ???????????????? ???????/???????/?? ???? ????????/?????/??????? ?????? ??????/?????????/????? ????? ???????? ???? ????/??????????? ????, ???????? ???????/???????/??????????? backdrop, ??? ??????????/??????/??? ???
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