ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C22B0004060000 Alloys 1
C22B0004080000 Apparatus 1
C22B0005000000 General processes of reducing to metals 1
C22B0005020000 Dry processes 1
C22B0005040000 by aluminium, other metals, or silicon 1
C22B0005060000 by carbides or the like 1
C22B0005080000 by sulfides; Roasting reaction processes 1
C22B0005100000 by solid carbonaceous reducing agents 1
C22B0005120000 by gases 1
C22B0005140000 fluidised material 1
C22B0005160000 with volatilisation or condensation of the metal being produced 1
C22B0005180000 Reducing step-by-step 1
C22B0005200000 from metal carbonyls 1
C22B0007000000 Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof 1
C22B0007020000 Working-up flue dust 1