Maktek Panel Radiator has special steel sheets and convector design creates maximum efficien Production process is in line with TSE EN 442, ISO 14001 and 9001:2000 quality standart 100% quality control system for quality control reports Compact ventile and thermostatic valve options Maximum resistance to corosion by epoxy polyester powder painting technology Different color options besides standart RAL 9010 color Special packaging and export palletization system against possible strokes. All accessories are icluded in the package. 10 years guarantee.