| Badeecada | Dabka Rufinta Birta Tuubada |
| Alaab | Bir Kaarboon ah |
| Fasal | Q195 = S195 / A53 Heerka A Q235 = S235 / A53 Fasalka B / A500 Fasalka A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Heerka B Heerka C |
| Heerka Caadiga ah | GB/T3091, GB/T13793 API 5L, ASTM A53, A500, A36, ASTM A795 |
| Tilmaamaha | ASTM A795 sch10 sch30 sch40 |
| Dusha sare | Madow ama Casaan lagu rinjiyeeyay |
| Dhammaadyada | Cidhifyo cad |
| Dhammaadyo jeexan |
Heerarka iyo Shuruudaha
Qalabka iyo Dhismaha: Tuubooyinka UL-shahaadada haysta waxaa laga sameeyay bir tayo sare leh oo buuxisa halabuurka walxaha gaarka ah iyo sifooyinka farsamada.
Qiimaynta Cadaadiska: Tuubooyinkani waa inay u adkaystaan cadaadisyada sare ee caadiga ah ee nidaamyada rusheeyaha dabka.
Iska caabbinta Daxalka: Heerarka UL waxaa ka mid ah tijaabooyinka iska caabbinta daxalka si loo hubiyo in tuubooyinku ay u adkeysan karaan jawi adag.
Tijaabooyinka Daadinta iyo Xoojinta: Tuubooyinka waxaa la mariyaa tijaabo adag oo ku saabsan daadinta, xoogga qaraxyada, iyo hufnaanta qaab-dhismeedka.
Aqoonsiga
Calaamadda UL: Ka raadi calaamadda shahaadaynta UL ee ku taal tuubada, taas oo muujinaysa u hoggaansanaanta heerarka UL.
Macluumaadka Calaamadda: Calaamaddu waxay caadi ahaan ku jirtaa magaca soo saaraha, cabbirka tuubooyinka, heerka cadaadiska, iyo faahfaahin kale oo muhiim ah.


Nagu saabsan:
Shirkadda Tianjin Youfa Steel Pipe Group Co., Ltd waxaa la aasaasay Luulyo 1, 2000. Waxaa jira ilaa 8000 oo shaqaale ah, 9 warshadood, 179 khadad wax soo saar oo tuubooyin bir ah, 3 shaybaar oo qaran oo la aqoonsan yahay, iyo 1 xarun tignoolajiyada ganacsiga oo ay dowladdu aqoonsan tahay oo Tianjin.
62 Khadad wax soo saar tuubooyin bir ah oo ERW ah
Warshado:
Tianjin Youfa Steel Pipe Group Co.,Ltd.-Lambarka 1aad ee Laanta;
Tianjin Youfa Steel Pipe Group Co.,Ltd.-Laan 2;
Tangshan Zhengyuan Steel Pipe Co., Ltd;
Tangshan Youfa Steel Tube Manufacture Co., Ltd;
Handan Youfa Steel Pipe Co., Ltd;
Shanxi Youfa Steel Pipe Co., Ltd








