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Rīra Kirihou 13 inihi kua Huihui
- He pai mō te tuku me te penapena i tētahi wāhanga kua takaihia ki roto i te rīpene kawe mai i te whānui 8mm ki te 72mm
- He tino pai te tiakitanga nā te polystyrene i werohia ki te werohanga, e toru ngā matapihi.
- Mā te tuku motuhake i ngā flange me ngā hub ka taea te whakaiti i ngā utu tuku mā te 70%-80%.
- Ka taea e te rokiroki matotoru te penapena wāhi tae atu ki te 170% te nui ake i ngā rīra kua huihuia
- Ka huihui mā te nekehanga takahuri māmā
