NATIONAL HOTLINE：+86 18563949712
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Zhangjiakou City Xuanhua BroadVision Drilling Machinery Co. Ltd all rights reserved Hebei ICP No. 18028728-1
TEL：+86-18563949712 E-mail：zyzcjx@163.com
Company Address：No. 198, Xuanfu Street, Xuanhua District, Zhangjiakou City, Hebei Province，China
