Amapulasitiki okuthambisa abalulekile ukuze kwandiswe impilo yawo futhi anciphise ukusetshenziswa kwamandla kanye nokungqubuzana. Izinto eziningi ziye zasetshenziswa eminyakeni edlule ukuze kugcotshwe ipulasitiki, Amafutha asekelwe ku-silicone, i-PTFE, ama-wax esisindo samangqamuzana aphansi, amafutha amaminerali, kanye ne-synthetic hydrocarbon, kodwa ngayinye inesithako esingathandeki. s...
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