| Ibicuruzwa | Umuyoboro wamashanyarazi |
| Ibikoresho | Ibyuma bya Carbone |
| Icyiciro | Q195 = S195 / A53 Icyiciro A. Q235 = S235 / A53 Icyiciro B / A500 Icyiciro A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Icyiciro B Icyiciro C. |
| Bisanzwe | GB / T3091, GB / T13793 API 5L, ASTM A53, A500, A36, ASTM A795 |
| Ibisobanuro | ASTM A795 sch10 sch30 sch40 |
| Ubuso | Irangi ryirabura cyangwa Umutuku |
| Iherezo | Ikibaya kirangirira |
| Impera |
Ibipimo n'ibisabwa
Ibikoresho nubwubatsi: Imiyoboro yemewe ya UL ikozwe mubyuma byujuje ubuziranenge byujuje ibintu byihariye hamwe nubukanishi.
Ibipimo by'ingutu: Iyi miyoboro igomba kwihanganira umuvuduko mwinshi usanzwe muri sisitemu yo kumena umuriro.
Kurwanya ruswa: Ibipimo bya UL bikubiyemo ibizamini byo kurwanya ruswa kugira ngo imiyoboro ishobora kwihanganira ibidukikije bikaze.
Ibizamini byo kumeneka n'imbaraga: Imiyoboro ikorerwa igeragezwa rikomeye kumeneka, imbaraga ziturika, hamwe nuburinganire bwimiterere.
Kumenyekanisha
Ikimenyetso cya UL: Reba ikimenyetso cya UL cyemeza kuri pipe, cyerekana kubahiriza ibipimo bya UL.
Akarango Amakuru: Akarango mubisanzwe karimo izina ryuwabikoze, ingano yumuyoboro, igipimo cyumuvuduko, nibindi bisobanuro byingenzi.
Ibyerekeye:
Tianjin Youfa Steel Pipe Group Co., Ltd yashinzwe ku ya 1 Nyakanga 2000.Hari abakozi bagera ku 8000, inganda 9, imirongo 179 itanga imiyoboro y’ibyuma, laboratoire 3 yemewe mu gihugu, hamwe n’ikigo cya Leta cya Tianjin cyemewe n’ikigo cy’ikoranabuhanga cy’ubucuruzi.
62 Imirongo ikora ibyuma bya ERW
Inganda:
Tianjin Youfa Steel Pipe Group Co, Ltd.-No.1 Ishami;
Tianjin Youfa Steel Pipe Group Co, Ltd.-No.2 Ishami;
Tangshan Zhengyuan Steel Pipe Co., Ltd;
Tangshan Youfa Steel Pipe Manufacture Co., Ltd;
Handan Youfa Steel Pipe Co, Ltd;
Shanxi Youfa Steel Pipe Co., Ltd.
