| Khoom | Cov Yeeb Nkab Hlau Hluav Taws Xob |
| Khoom siv | Cov Hlau Carbon |
| Qib | Q195 = S195 / A53 Qib A Q235 = S235 / A53 Qib B / A500 Qib A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Qib B Qib C |
| Tus Qauv | GB/T3091, GB/T13793 API 5L, ASTM A53, A500, A36, ASTM A795, API 5L |
| Cov Lus Qhia Tshwj Xeeb | ASTM A795 sch10 sch30 sch40 |
| Nto | Pleev Xim Dub los yog Liab |
| Xaus | Cov xaus tiaj tiaj |
| Cov xaus uas muaj qhov sib txuas |
Cov Qauv thiab Cov Kev Cai
Cov Khoom Siv thiab Kev Tsim Kho: Cov kav dej uas tau ntawv pov thawj UL yog ua los ntawm cov hlau zoo uas ua tau raws li cov khoom siv tshwj xeeb thiab cov khoom siv kho tshuab.
Kev Ntsuas Siab: Cov kav dej no yuav tsum tiv taus cov siab siab uas feem ntau siv rau hauv cov tshuab txau dej tua hluav taws.
Kev Tiv Thaiv Kev Xeb: Cov qauv UL suav nrog kev sim rau kev tiv thaiv kev xeb kom ntseeg tau tias cov kav dej tuaj yeem nyiaj tau rau qhov chaw ib puag ncig hnyav.
Kev Ntsuas Qhov Xaim thiab Lub Zog: Cov kav dej raug kuaj xyuas kom zoo rau qhov xaim, lub zog tawg, thiab kev ruaj khov ntawm cov qauv.
Kev txheeb xyuas
Cim UL: Nrhiav lub cim pov thawj UL ntawm cov yeeb nkab, uas qhia tias ua raws li cov qauv UL.
Cov Ntaub Ntawv Txog Daim Ntawv Sau: Daim ntawv sau feem ntau muaj lub npe ntawm tus neeg tsim khoom, qhov loj ntawm cov yeeb nkab, qhov ntsuas siab, thiab lwm yam ntsiab lus tseem ceeb.
Txog peb:
Tianjin Youfa Steel Pipe Group Co., Ltd tau tsim muaj rau lub Xya Hli 1, 2000. Muaj tag nrho li ntawm 8000 tus neeg ua haujlwm, 9 lub Hoobkas, 179 kab tsim cov yeeb nkab hlau, 3 lub chaw soj nstuam hauv tebchaws, thiab 1 lub chaw tsim khoom siv thev naus laus zis uas tsoomfwv Tianjin tau lees paub.
62 ERW steel yeeb nkab ntau lawm kab
Cov Hoobkas:
Tianjin Youfa Steel Pipe Group Co., Ltd .-Ceg No.1;
Tianjin Youfa Steel Pipe Group Co., Ltd .-Ceg No.2;
Tangshan Zhengyuan Steel Yeeb Nkab Co., Ltd.
Tangshan Youfa Steel Pipe Manufacture Co., Ltd;
Handan Youfa Steel Pipe Co., Ltd;
Shanxi Youfa Steel Pipe Co., Ltd
