Kei te haere tonu ngā pakanga ā-iwi, engari kei te whakauru tonu ngā kaupapa here pai a ngā ōhanga whānui o roto, ā, i te taha ahumahi, kua eke ngā utu o te rino ki ngā taumata teitei hou i ngā wā maha. Kua piki ake ngā arotahi-rua nā te pikinga o te tono i te wā whakamahana, kua kaha te tautoko utu, ā, kua piki tonu ngā utu maitai. , kua kaha ake te mataku mō te tono nui o te taunga, kua piki ake ngā mahi whakakī anō i te mākete, kua heke te hanga maitai mata o ia rā, kua heke te kawemai o te rino, kua tīmata tētahi atu rauna o ngā hokohoko oneone, ā, he pumau, he kaha te mākete tūnga. Mai i te tirohanga whānui, e matapaetia ana ka pumau, ka kaha ngā utu maitai āpōpō.

Kei a Sanon Pipe Industry ngā paipa rino e whai ake nei i tēnei wā:

Paipa maitai kore-whakauru mō ngā kōhua ​​pēhanga iti me te pēhanga waenga - GB/T3087-200810#, e whakamahia ana mō ngā paipa mamaoa wera rawa, ngā paipa wai kohua, ngā paipa pakitara matao-wai me ngā paipa mamaoa wera mō ngā kohua tereina, ngā paipa paowa nui, ngā paipa paowa iti me ngā paipa pereki āwhata, me ētahi atu. Rauemi matua: 10# 20#, tukanga whakaputa: ka tukuna te takai-wera i te āhua takai-wera, ka tukuna te takai-matao (takai) i te āhua tukatuka-wera.

Ngā paipa maitai kore-tuitui mō ngā kohua pēhanga teitei - GB/T5310-2017, kaupapa: E whakamahia ana mō te hanga paipa maitai hanganga waro kounga teitei, maitai hanganga koranu me te maitai ātete wera kowiri tira mō ngā paipa poiha mamaoa pēhanga teitei me runga ake. . Ko ngā momo maitai hanganga waro kounga teitei ko te 20g, 20mng, me te 25mng, ā, ko ngā momo maitai hanganga koranu ko te 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, me ētahi atu.

ASME SA-106/SA-106M-2015——Rauemi matua: GR.B GR.C

ASTMA210(A210M)-2012——Rauemi matua: SA210 GrA1. SA210 GrC

ASME SA-213/SA-213M- Ngā rauemi koranu e whakamahia whānuitia ana: T11, T12, T22 T23 T91 P92

ASTM A335/A335M-2018- Ngā rauemi matua: P11 P12 P22 P5 P9 P23 P91 P92

Ngā paipa mīhini me ngā paipa tongi me te matū:GB/T8162-2008Ngā paipa maitai kore hononga mō te whakamahinga hanganga - ko ngā rauemi matua ko 10.20.35.45.Q345

BS EN 10210-1-2006Ngā wāhanga hanganga maitai kore-koranu hurihuri-wera me ngā wāhanga hanganga maitai pai-kikokore mō ngā hanganga maitai—S235GRH S275JOH S275J2H S355JOH S355J2H

ASTM A53A53M-2012Paipa maitai whakapūmau, whakarewahia, me te tuku wera - GR. A GR.B

Ngā ngongo maitai kore-tuitui mō te pakaru hinuGB9948-2006 ——Ngā ngongo maitai kore-tuitui mō ngā ngongo paowa, ngā ngongo whakawhiti wera me ngā paipa i roto i ngā tipu hinu me te whare whakapai hinu, ko ngā rauemi matua ko: ko ngā momo maitai hanganga waro kounga teitei ko te 20G, 20MnG, 25MnG, ko ngā momo maitai hanganga koranu ko te 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, me ētahi atu;

Ngā Paipa Hinu, Ngā Paipa HangangaNgā Paipa Raina API 5L (Putanga 45) PSL1 PSL2, GB/T 9711-2017 Ngā paipa maitai mō ngā pūnaha kawe paipa ahumahi hinu me te hau, rauemi matua: GR.B X42 X52 X60 X65 X70;

API SPEC 5CT-2018 Te Kete me te Ngongo, ko ngā rauemi matua ko: J55 K55 N80 N80Q L80 L80Q P110