Lanzhou Construction Building Materials Co., Ltd. enterprise address is located in Lanzhou City, Gansu Province Qilihe District Xijin West Road No. 819 Gansu Mechanical and Electrical City Building 73 Building No. 117, belongs to the industry for the wholesale industry, the business scope includes: geotechnical materials, waterproof building materials, building materials, wood, rubber and plastic products, metal hoses, industrial and mining hardware mechanical and electrical equipment, bridge and tunnel engineering materials wholesale and retail; sales and construction of carbon fiber cloth; sales and construction of highway guardrails (the above two are operated with qualification certificates); Sales of road traffic and sanitation facilities (the above items that must be approved according to law can only be carried out after approval by the relevant departments.