Hebei Zifeng New Energy Technology Co.,Ltd. Address Rm501,Shenglun Building,Heping West Road, Shijiazhuang, Hebei,China. E-mail info@zifengtech.com(Metals) export@zifengtech.com(Stones) Phone 0086-13383210500 0086-13383210500 Hours Monday-Friday: 9am to 6pm Saturday, Sunday: Closed