Shandong Longtai Security Technology Co., Ltd., established on 2004-05-24, The business scope includes coal mine security detection equipment,Instrumentation,self-rescuer,blaster,Personnel Positioning System,Blasting management system,Gas inspection system,Dust Management System,Security Surveillance Video System,On-site supervision and evidence collection system,Lightning protection system,digital broadcasting system,security alarm system,Development of Electric Heating,manufacture,Sales maintenance,Technical Services;Design and construction of ground security engineering;Computer hardware and software and auxiliary equipment,Non-dedicated communication equipment,computer consumables,Office automation equipment,Air Conditioning Equipment and Accessories,Production of household appliances,Sales;Wholesale and retail of daily necessities;Online Trade Agent,Development and integrated sales of network technology;electronic product,Lightning protection equipment,Fire equipment,surveillance video,Investigation and evidence collection equipment,household products,Wujinjiaodian,Sales of building materials;Realtor;Construction general contracting,Landscaping project,General Contracting of Municipal Public Works Construction,Professional contracting of waterproof, anti-corrosion and thermal insulation engineering,Earthwork,Mechanical and electrical engineering construction general contracting,Professional contracting of building decoration and decoration engineering,Construction labor subcontracting(Operate with qualification certificate);IoT technology development,Technical Services;Technological development of electromechanical equipment,technical consulting,Technical Services,repair,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)