... waste tyre pyrolysis machine 1product:tyre oil,steel wire,carbon black 2average using life 8 years 3hot sale High oil yield waste tyre ... safety and service life. Therefore, we use automatic welding machine, X rays detection and heating treatment which will not only ... special steel plate ,thickness 14mm.2. Welding: Automatic welding machine with heating treatment and x-ray detection will prolong the ...