... ,plastic machine,film machine,machine,pe film machine film Blowing Production Line,china film machine,film blowing machine,plastic machine,film ... 38CrMoAl,having the best hardness and corrosion-resisting performance after nitrogen treatment and precision processing.FM-600 auxiliary machine can adjust ... -0.10 mmFilm Width50-1200 mmWeight2-4.5T Film Blowing Production Line