1. Beijing Langwei Times Technology And Science Co.,Ltd was established in 2004

2. The first domestic preventative waterproofing material system is applied in national large key projects such as Beijing subway in 2005

3. In 2006,we set the enterprise standard of QLTXLWS001-2006 grouting pipe embedment and edit the bylaw for details construction of waterproofing engineering of rail transportation and JQB-103-2006 standard for construction quality acceptance for details waterproofing engineering of rail transportation in the same year.

4. In 2007, we set up the second generation environmental research topic of acrylate grout material, it is listed Beijing municipal science and technology special topic in 2008 and get  the support of high growth enterprise special- Beijing municipal technological innovation of technology capital,the topic has been verified for acceptance in 2010.

5. We participate in setting technical specification of waterproofing of underground works construction of rail transportation. in 2008.

6. Our company set the enterprise standard of the QTXLWS002-2008 AC-II acrylate grout material in 2008.

7. AC-II acrylate grout material was identified Beijing municipal self-renovation product by Beijing Municipal Science & Technology Commission, Beijing Municipal Development and Reform Commission,Beijing Municipal Commission of Housing and Urban-Rural Development, Beijing Municipal Commission of Economy and Information Technology and Administrative Committee of Zhongguancun Science Park in 2009.

8. In 2009,preparation grouting system,water swelling sealant and the second generation acrylate grout are rated as ten new technologies(2010).

9. Our company participated in editing the industry standard of JC/T2037-2010 acrylate grout material and become one of the main drafting company in 2010.

10. In 2010,our company got the Customs Administration of People Republic of China Import and Export Commodity Consignee and Consigner Customs Declaration Registration Certificate and starts to do overseas business.

11. We got the patent certificate of the AC-II acrylate grout in 2011.

12. Our company participated in setting the national standard of technical requirement of grouting pipe embedment for concrete joint waterproofing of rail transportation in 2012.

13. Langwei passed GB/T19001-2008/ISO9001:2008 quality management system,GB/T24001-2004 idt ISO4001:2004 environmental management system and GB/T28001-2011/OHSAS 18001:2007 occupation health & safey management system in 2013.

14. In 2013,Beijing Langwei launched a series of AC-II acrylate grout products: AC-D acrylate grout,it is mainly applied in sloving the leakage and maintenance of fine fissure for concrete.