Irin Pipe Factory
Tangshan Zhengyuan Pipeline Industry Co., Ltd.
Tangshan Youfa Irin Pipe Manufacture Co., Ltd.
Tangshan Youfa New Building Equipment Co., Ltd
Agbara iṣelọpọ
39 Erw Yika Pipe Production Lines
24 Galvanized Erw Yika Pipe Production Lines
4 Irin Plastic yellow Production Lines
9 Ringlock Scaffolding Standard/Ledge/Diagonal àmúró Awọn laini iṣelọpọ