(1) - Treatment of materials, namely treatment of waste water, drinking water, processing water, cooling water, surface water and ground water; engineers' services in the field of providing technical assistance with the realization of water management projects; designing water supply and water draining systems; design of water purification installations
(2) - Water purification units for domestic, commercial and industrial use; water purification installations, namely wastewater treatment units for domestic, commercial and industrial use; water filtering units for domestic, commercial and industrial use
(3) - Water purification units for domestic, commercial and industrial use; water purification installations, namely wastewater treatment units for domestic, commercial and industrial use; water filtering units for domestic, commercial and industrial use
(4) - Water purification units for domestic, commercial and industrial use; water purification installations, namely wastewater treatment units for domestic, commercial and industrial use; water filtering units for domestic, commercial and industrial use
(5) - Treatment of materials, namely treatment of waste water, drinking water, processing water, cooling water, surface water and ground water
(6) - Treatment of materials, namely treatment of waste water, drinking water, processing water, cooling water, surface water and ground water
(7) - Engineers' services in the field of providing technical assistance with the realization of water management projects; designing water supply and water draining systems; design of water purification installations
(8) - Engineers' services in the field of providing technical assistance with the realization of water management projects; designing water supply and water draining systems; design of water purification installations
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