1.Electronicproductmaintenanceandinstallation (0)
2.Maintenanceandinstallationofpackagingandprinting (0)
3.Electricianelectricalmaintenanceandinstallation (0)
4.Hardware/toolmaintenanceandinstallation (0)
5.Instrument/instrumentmaintenanceandinstallation (0)
6.Maintenanceandinstallationofcommunicationproduct (0)
8.Digital/computermaintenanceandinstallation (0)
9.Buildinginstallationandmaintenance (0)
10.Maintenanceandinstallationofautomobilesandacces (0)
11.Mechanicalequipmentmaintenanceandinstallation (0)
12.Electricalmaintenanceandinstallation (0)
13.Maintenanceandinstallationofofficeequipment (0)
14.Othermaintenanceandinstallationservices (0)
16.Industrialmaintenanceandinstallation (0)