Zogulitsa | Chitoliro cha Chitsulo chamoto |
Zakuthupi | Chitsulo cha Carbon |
Gulu | Q195 = S195 / A53 Gulu A Q235 = S235 / A53 Gulu B / A500 Gulu A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Gulu B Gulu C |
Standard | GB/T3091, GB/T13793 API 5L, ASTM A53, A500, A36, ASTM A795 |
Zofotokozera | ASTM A795 sch10 sch30 sch40 |
Pamwamba | Paint Black kapena Red |
Kutha | Zopanda mapeto |
Grooved mapeto |
Miyezo ndi Zofunikira
Zipangizo ndi Zomangamanga: Mapaipi ovomerezeka a UL amapangidwa kuchokera kuzitsulo zapamwamba kwambiri zomwe zimakumana ndi zinthu zinazake komanso makina.
Mayeso a Pressure: Mipope iyi iyenera kupirira kupsinjika kwakukulu komwe kumafanana ndi makina opopera moto.
Kukaniza kwa Corrosion: Miyezo ya UL imaphatikizapo kuyesa kukana kwa dzimbiri kuwonetsetsa kuti mapaipi amatha kupirira malo ovuta.
Mayeso a Leakage ndi Mphamvu: Mapaipi amayesedwa mwamphamvu kuti atsike, kuphulika kwamphamvu, komanso kukhulupirika kwamapangidwe.
Chizindikiritso
UL Mark: Yang'anani chizindikiro cha UL papaipi, chomwe chikuwonetsa kutsata miyezo ya UL.
Chidziwitso cha Zolemba: Chizindikirocho nthawi zambiri chimakhala ndi dzina la wopanga, kukula kwa chitoliro, kuchuluka kwa kuthamanga, ndi zina zofunika.
Zambiri zaife:
Tianjin Youfa Zitsulo chitoliro Gulu Co., Ltd anakhazikitsidwa pa July 1, 2000. Pali kwathunthu za 8000 ogwira ntchito, 9 mafakitale, 179 mizere zitsulo chitoliro kupanga, 3 zasayansi dziko zovomerezeka, ndi 1 Tianjin zatulutsidwa boma luso pakati bizinesi.
62 ERW mizere yopanga zitoliro zachitsulo
Mafakitole:
Tianjin Youfa Steel Pipe Group Co.,Ltd .-No.1 Nthambi;
Tianjin Youfa Steel Pipe Group Co.,Ltd .-No.2 Nthambi;
Tangshan Zhengyuan Zitsulo Pipe Co.,Ltd;
Tangshan Youfa Steel Pipe Manufacture Co.,Ltd;
Handan Youfa Steel Pipe Co.,Ltd;
Malingaliro a kampani Shanxi Youfa Steel Pipe Co., Ltd