GRH hoahoa me hua wae mana, e āmio nekeneke, papua taputapu waipēhi / motors taputapu, vaolo reo-poraka, vaolo tāpae motu, vaolo hautanga me whakawehenga rere e te nuinga .Ko wāhanga whakamahia i runga i machineries ahumahi, rauemi whāwhā, machineries hanga, ahuwhenua, me te ahumahi mara.