Air-Conditioning Ventilations & Air Filtration Systems Installation & Maintenance
Includes series of installation processes ranging from fitting devices and accessories to air-conditions, ventilators, air-purifiers , to reconditioning and maintaining the old units, cleaning air ducts, fixing fans, fabric filters, sound dampers… etc. It also involves installing air-sterilizers in foodstuff cold stores, kitchens, hospitals, laboratories, animal breeding and husbandry rooms, electronic plants, any facility that requires highly purified air or air with specific gas concentration.
Electricity Transmission & Control Equipment Installation & Maintenance Works
Includes installing and maintaining electric power transmission and distribution equipment and devices, such as current rectifiers, alternation controllers, operation panels, electric and electronic control apparatuses and distribution panels.
Plumbing & Sanitary Installation
Includes fixing water pipes at home and sanitary installation such as washbasins, bathtubs, lavatories, tapes, spigots, and bathroom and kitchen articles.