Dear SirsOn behalf of the Athens Public Transportation Company named O.SY. S.A., we would like to inform you the following:1. We own over 2000 busses, different trade marks witch carrying ZF and VOITH automatic gear boxes. 2. The annual needs for friction disks are over 4000 pieces.We would like to inform us, if your company produces and dispose friction disks for the above mentioned gear boxes, in order to test them for future cooperation.Moreover, the purchase procedure of our company is the allocation of the lower bitter from certified manufactures. The type of gear boxes used are as follow:ZF 1. 4HP 5002. 4HP 5903. 5HP 6024. 5HP 502VOITH 1. DIWA 864, 32. DIWA 854, 3 E3. DIWA 864, 54. DIWA 854, 5 A/N P/N ZF P/N VOITH 1 4139 270 036 50.7147.162 4139 233 178 50.7715.203 4139 333 015 50.7920.104 4139 333 172 50.9743.135 4139 270 035 52.6303.106 4139 333 373 52.6306.107 4139 333 745 54.9141.108 4139 373 029 58.2250.139 4139 333 766 58.2460.1310 4139 333 759 68.3001.1311 4139 333 036Best regards Nikolaos Skordos