Insimbi engagqwali iqinile, imelana nokugqwala okuvela kumakhemikhali e-caustic, uketshezi olubolayo, uwoyela, namagesi, futhi imelana nokucindezela namazinga okushisa aphezulu.Thayipha insimbi engagqwali engu-304, i-chromium-nickel material, imelana nokugqwala okubangelwa amanzi, ukushisa, amanzi anosawoti, ama-acids, amaminerali, nenhlabathi e-peaty.Insimbi engagqwali engu-316 inokuqukethwe kwe-nickel ephakeme kuno-304 engagqwali, kanye ne-molybdenum, yokumelana nokugqwala okukhulu okuvela kumakhemikhali e-caustic, uketshezi olubolayo, uwoyela, namagesi, futhi imelana nengcindezi namazinga okushisa aphezulu.Ipayipi le-304 lixhuma nezinto zokuthutha umoya, amanzi, igesi yemvelo, isitimu, namakhemikhali ukuya emathangini okugcina nasemapayipini okuhlala kuwo, nasekhishini nasezindaweni zokudla.Ipayipi le-316 lixhuma nezinto zokuthutha umoya, amanzi, igesi yemvelo, isitimu namakhemikhali ekukhiqizeni amakhemikhali, ezokuthutha ezimbonini namakhemikhali, nasekukhiqizweni nasekucutshungulweni kokudla.Insimbi engagqwali itholakala ngobude bepayipi obungaphezu kuka-12″ nobude bengono obungu-12″ nangaphansi.