I whakawhiwhia ngā paipa maitai tapawhā me te tapawhā hāngai a Tianjin Yuantai Derun Group ki te tiwhikete hua AAAAA e te Institute of Metallurgical Industry Planning.

E ai ki ngā whakaritenga motuhake o te "okiokinga māia" mō ngā paipa tapawhā me te tapawhā hāngai mō ngā kaupapa hanganga, ngā paipa maitai tapawhā me te tapawhā hāngai mō ngā kaupapa hanganga whānui, ka whai whakaaro whānui te paerewa ki te ōritetanga kounga, te urupare kounga, te tiwhikete hua, ngā tohu honore i te taumata hua, te kaha whakapūmau kounga i te taumata hinonga, te kaha auaha, te pono o te hinonga, te taumata ratonga, te taumata mōhiohio me ētahi atu ihirangi. Ma te arotahi ki te tuku i te kaha whakapūmau kounga hua hinonga me te uara waitohu hua, ka whakawhanake i ngā paerewa aromatawai pūtaiao, whaitake, matatau me te tika, ka whakarato i te pūtake mō te taahiraa e whai ake nei o ngā paipa hāngai hanganga, te tohu waitohu whakapūmau paipa maitai hāngai matao, takai wera rānei mō te kaupapa whānui, ka whakatipu me te hanga hua maitai "waitohu whakapūmau".