I am a student at Mechanical Engineering Departmant at University of Kocaeli in Turkey. I will graduate my education on july. But I must find more informations about cross linked polyethylene pipes. Do you know any good adresses for example includes *.pdf or *.doc pages and includes really useful informations. I searched them by the searching pages but i got lost at this pages. I didn't find useful one. I will be glad if you send me informations.