• BEIJING LANGWEI TIMES TECHNOLOGY AND SCIENCE CO.,LTD

    Roo 503,4A Modern Zone No.16BaiziwanRoadChaoyangDistrict,Beijing,(100022)China Hangzhou, Zhejiang

    We are good at waterproofing products for construction projects,Website:http://www.long-wee.com, such as joint sealing and waterproofing, concrete cracks repair with the chemical inject grouts so on.http://www.long-wee.com ...