☆Ububanzi bembobo Φ22
☆ Umzimba webhokisi wenziwe ngamapulasitiki obunjiniyela angagqwali
☆Isetshenziswa ku-petroleum, imboni yamakhemikhali, i-metallurgy nolunye uthuli oluphezulu, i-asidi ebuthakathaka kanye nezikhathi ezibuthakathaka ze-alkali ezonakalisayo.