Contact information Factories Products Stock Picture gallery Sales Welcome to the homepage of Koskisen Betoni OY. KOSKISEN BETONI OY IS A concrete company in Lammilainen. Solid over 20 years of experience in the industry guarantees reliable deliveries and good quality. From us, you can get concrete services with professionalism for both private and corporate customers. KOSKISEN BETONI OY is under the supervision of SFS-Inspecta Sertifionti Oy and has been granted the right to use the SFS inspection mark. Koskisen Betoni OY Häkyläntie 5 16900 Lammi tel. 03-6336575- The factories are located in Hämeenkoski and Mäntsälä