Hebei Zifeng Bag-ong Energy Technology Co., Ltd. Address Rm501, Shenglun Building, Heping West Road, Shijiazhuang, Hebei, China. E-mail info@zifengtech.com zifengpipeline@163.com Telepono 0086-13383210500 0086-311--13383210500 Mga oras Lunes-Biyernes: 9am hangtod 6pm Sabado, Domingo: Sirado