Hale Hana Paipu kila
Tianjin Youfa Steel Pipe Group Co., Ltd .-No.1 Lala;
Tianjin Youfa Steel Pipe Group Co., Ltd .-No.2 Lala;
Tianjin Youfa Dezhong Steel Pipe Co., Ltd;
Tianjin Youfa Pipeline Technology Co., Ltd;
Tianjin Youfa Ruida Traffic Facilities Co.,Ltd;
Tianjin Youfa Stainless Steel Pipe Co., Ltd;
ʻO Tianjin Youfa Hongtuo Steel Pipe Manufacture Co., Ltd.
Kapa Hana Hana
16 Erw Poe Paipu Hana Laina
15 Huina A me Rectangular Steel Paipu Hana Laina
6 Galvanized Square A me Rectangular Steel Pipe Production Lines
16 Galvanized Erw poepoe i hana laina
5 Na Laina Paipu Paipu Pipa
10 Na Laina Paahana Pahu Paa kila
3 Na Laina Paipu Pahu Papu Paa
9 Nā Laina Hana Hoʻokumu ʻana i ke Kaʻa Kiaʻi Wela
10 mau laina paipu kuhiliʻole
5 Paipu Kinohi A me nā Laina Hana Hana