I-IOKA STONE ineqembu elilodwa labasebenzi abanamakhono aphezulu efektri iminyaka engaphezu kwengu-20. Ifektri yethu ihlanganisa indawo engamamitha-skwele angama-24,000, futhi sinemishini yobuchwepheshe yokukhiqiza imikhiqizo esezingeni eliphakeme, efana nale: Umshini omkhulu wokunyathelisa onelungelo lobunikazi, umshini omkhulu wokusika inkwali kanye ne-slab, umshini wokupholisha, umshini wokusika we-infrared, Umshini wokusika amanzi kanye ne-Automatic heterosexual. umshini wokusika umugqa.