Ko te tangohanga he mahi tango i te paninga polymer whakamarumaru huri noa i te muka whatu hei whakarite mo te whakakotahitanga whakakotahitanga, no reira ka tangohia e te kaihoroi muka o te kounga pai te koti o waho mai i te taura muka whatu, ka taea te awhina i a koe ki te tere ake i te mahi o te mahi i nga mahi tiaki whatunga muka me te karo i te wa roa o te whatunga.