I-QDY/QDK uchungechunge lwezihlungi zensimbi engagqwali ziwu-304 noma 316L izihlungi zensimbi engagqwali, zine-desig enengqondo, isakhiwo esihlangene kanye nokuma okuhle, futhi zingasusa i-faceplate, azinayo i-engeli efile, ukuhlanza ukufakwa kulula futhi kulula.Indawo engaphakathi ipholishwe kahle, ihlangabezana nezidingo zezinga lezempilo futhi ihambisana nezinga le-GMP.Izihlungi ze-QDY/QDK zisetshenziswa kakhulu kwezokwelapha, ukudla, imboni yamakhemikhali, zikagesi, nezimboni zokuvikela imvelo.Izihlungi ze-QDY ziwuchungechunge lokuhlunga uketshezi futhi izihlungi ze-QDK ziwuchungechunge lokuhlunga kwegesi.