Ngā ngongo ngutu He tino rongonui i roto i ngā mahi whakapaipai o ia rā me ngā mahi whakapaipai haereere nā te mea he kikokore te āhua, he hoahoa pēhi kotahi-pāwhiri me te rahi iti. Ko tā mātou pene pēhi MB-89 he ngongo takai whakapaipai maha-whakamahinga i hangaia mō te kanapa ngutu, te tae ngutu, te hinu ngutu me ngā hua raina ngutu. Ka whakamahia e ia te hanganga kirihou PP, ka tautoko i te tae werohanga ritenga me te tā mata hiraka, me te hanganga pēhi ā-roto pumau, me ngā taipitopito āhua katoa ka taea te whakarite. Ka whakaatuhia katoatia e tēnei tuhinga ngā tawhā, ngā painga rauemi, ngā kōwhiringa ritenga me ngā horopaki tono o te ngongo rīpene rīpene MB-89 mō ngā kaihoko waitohu whakapaipai.