Ka tukuna e matou he tuhi waea rino PC me te miihini paearu motuhake mo te hanga waea PC me te whenu e whakamahia ana i mua i te whakakorikori raima mo te hanga momo momo hanganga (Road, River & Railway, Bridges, Building, etc.).Ka taea e te miihini te whakaputa waea PC papatahi, riipene ranei e tohuhia ana e te kiritaki.