GB/T8162-2008 (Paipa maitai kore-tuitui mō te hanganga). E whakamahia ana mō te hanganga whānui me te hanganga mīhini. Ko ōna rauemi e tohu ana (waitohu): maitai waro#20,# 45 maitai; koranu maitai Q345B, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, me ētahi atu. Hei whakarite i te kaha me te whakamātautau papatahi.

GB/T8163-2008 (Paipa maitai kore-tuitui mō te kawe wai). E whakamahia ana i roto i te hangarau me ngā taputapu nui hei kawe i ngā paipa wai. Ko te rauemi matua (waitohu) ko 20#, 45#. 55# Q345 B me ētahi atu.

GB3087-2008 (Ngā paipa maitai kore-tuuturu mō ngā kohua pēhanga iti me te reo). E whakamahia ana i roto i ngā kohua ahumahi me ngā kohua kāinga hei kawe i ngā paipa wai pēhanga iti me te reo. Ko ngā rauemi e tohu ana ko te maitai 10 me te 20. Haunga te whakarite i te hanganga matū me ngā āhuatanga miihini, me mahi ngā whakamātautau pēhanga wai, te whakapiko, te mura, me ngā whakamātautau whakatārewatanga.

GB5310-2008 (Ngā ngongo maitai kore-tui mō ngā poiha pēhanga teitei). E whakamahia ana mō ngā pane me ngā paipa kawe wai pāmahana teitei me te pēhanga teitei i runga i ngā poiha i roto i ngā tipu hiko me ngā tipu hiko karihi. Ko ngā rauemi e tohu ana ko te 20G, 12Cr1MoVG, 15CrMoG, me ētahi atu. Haunga te whakarite i te hanganga matū me ngā āhuatanga miihini, me mahi he whakamātautau pēhanga wai takitahi, me te whakamātautau mura me te whakatārewatanga. Ka tukuna te paiha maitai i roto i te āhua whakamahana. Hei tāpiri, tera ano etahi whakaritenga mō te hanganga moroiti, te rahi o te witi, me te paparanga tango-waro o te paiha maitai kua oti. 

GB5312-2009 (Ngā ngongo maitai kore-whakaurunga maitai waro me te maitai waro-konupora mō ngā kaipuke). E whakamahia ana mō ngā paipa pēhanga I me II mō ngā kohua moana me ngā whakamahana nui. Ko ngā rauemi e tohu ana ko ngā momo maitai 360, 410, 460, me ētahi atu.

GB6479-2013 (Ngā paipa maitai kore-tuitui mō ngā taputapu tongi pēhanga teitei). E whakamahia ana mō te kawe i ngā paipa wai pāmahana teitei me te pēhanga teitei i runga i ngā taputapu tongi. Ko ngā rauemi e tohuhia ana ko te 20#, 16Mn/Q345B, 12CrMo, 12Cr2Mo, me ētahi atu.

GB9948-2013 (Paipa maitai kore-tuitui mō te pakaru hinu). E whakamahia ana i roto i ngā kohua, ngā whakawhiti wera me ngā paipa wai o ngā whakarewa hinu. Ko ōna rauemi matua ko te 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, me ētahi atu.

GB18248-2008 (Ngā ngongo maitai kore hononga mō ngā rango hau). E whakamahia ana mō te hanga i ngā momo rango hau me te waipēhi. Ko ōna rauemi matua ko te 37Mn, 34Mn2V, 35CrMo, me ētahi atu.

GB/T17396-2009 (Ngā paipa maitai kore-honohono kua hurihia wera mō ngā tautoko waipēhi). E whakamahia ana mō te hanga tautoko waipēhi, ngā rango me ngā pou, me ētahi atu rango me ngā pou waipēhi. Ko ōna rauemi matua ko te 20, 45, 27SiMn, me ētahi atu.

GB3093-2002 (Ngā paipa rino kore-pēhanga teitei mō ngā miihini tīhiera). E whakamahia ana mō ngā paipa hinu pēhanga teitei o te pūnaha werohanga miihini tīhiera. Ko te tikanga, he paipa rino e tōia ana i te makariri, ā, ko tōna rauemi e tohu ana ko te 20A.

 GB/T3639-2009 (paipa maitai kore-whakairo, he paipa rino tino tika, he pai te takai, he pai te whakakoi rānei). E whakamahia ana mō ngā paipa rino mō ngā hanganga miihini me ngā taputapu pēhanga waro e hiahia ana ki te tika o ngā āhuatanga me te whakaotinga mata pai. Ko ōna rauemi e tohu ana ko te rino 20, 45, me ētahi atu.

GB/T3094-2012 (paipa maitai kore-honohono, he paipa maitai āhua motuhake). Ko te nuinga o te wā ka whakamahia hei hanga i ngā wāhanga hanganga me ngā wāhanga rerekē, ā, ko ōna rauemi he maitai hanganga waro kounga teitei me te maitai hanganga koranu-iti.