Stalen Pipe Factory
Tangshan Zhengyuan Pipeline Industry Co., Ltd.
Tangshan Youfa Steel Pipe Manufacture Co.,Ltd.
Tangshan Youfa New Building Equipment Co., Ltd
Produksje kapasiteit
39 Erw Round Pipe Production Lines
24 Galvanized Erw Round Pipe Production Lines
4 Steel Plastic Compound Production Lines
9 Ringlock Steigers standert / ledger / diagonaal brace Production Lines