Radan Koryčanský is a Přátelství založené na obchodu je mnohem lepší než obchod založený na přátelství. John D. Rockefeller at SÁRA, s.r.o.. They possess expertise in concept development, product marketing, product management, management, marketing. Colleagues describe them as "It was always my pleasure work with this guy (over 2.5 year). I can truly and shorty say about him - all the time very professional attitude to work, high knowledge of plastics material, technology and things around. He repeatedly helped in busy season with timely and precisely deliveries. He is fair businessman keeping always his word, good-tempered. He proved that business can be establish on long term friendly-cooperation how should be. Radan would be an asset to any team."