Iyo Vulcanization system inowedzera inoumbwa neyekuvhiringidzika mumiririri, anoenderana nekuzara kwesuruzuru.
Zvichienderana nezvinodiwa zvekushandisa zveRabha uye rabha, masisitimu akasiyana-siyana,.
Sulfa Vulcanization System inoshandiswa zvakanyanya mune General-chinangwa rabha uye} . . Sulfu kuronga system zvachose .