Ko te whitiki tukutahi he whitiki-whakakai me te mira harore ko te muka kaha ranei, ko te polyurethane he kowhatu, ko te neprene o roto, na te mea i uru ai te whitiki o te whitiki. Ko te whakaurunga o te whitiki tukutahi, te kaha whakawhiti, te hanganga taapiri, te aukati hinu, te whakakao i te pāmahana -2.
Taunakitanga:
CR: SN121; SN122; CR111; CR112; SN232; SN232; SN233; SN238; CR211; CR313; CR313; SN322; SN322;
HNRB pūhui.