no idea ____________________________________________________ Stephan Hazzam Research & Development Linde AG Linde Engineering Division Dr.-Carl-von-Linde-Str. 6-14 82049 Hoellriegelskreuth / Germany Phone +49 89 7445- 2278 Fax +49 89 7445 -4940 EVI.Praktikant@linde-le.com ____________________________________________________