Karfe Bututu Factory
Tangshan Zhengyuan Pipeline Industry Co., Ltd.
Tangshan Youfa Steel Pipe Manufacture Co., Ltd.
Tangshan Youfa New Building Equipment Co., Ltd
Ƙarfin samarwa
39 Erw Round Bututu Samar da Layukan
24 Galvanized Erw Round Bututu Lines
4 Karfe Plastics Compound Production Lines
9 Ringlock Scafolding Standard/littafi/diagonal takalmin gyaran kafa Layukan samarwa