ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C22B0017000000 Obtaining cadmium 1
C22B0017020000 by dry processes 1
C22B0017060000 Refining 1
C22B0019000000 Obtaining zinc or zinc oxide 1
C22B0019020000 Preliminary treatment of ores; Preliminary refining of zinc oxide 1
C22B0019040000 Obtaining zinc by distilling 1
C22B0019060000 in muffle furnaces 1
C22B0019080000 in blast furnaces 1
C22B0019100000 in reverberatory furnaces 1
C22B0019120000 in crucible furnaces 1
C22B0019140000 in vertical retorts 1
C22B0019160000 Distilling vessels 1
C22B0019180000 Condensers; Receiving vessels 1
C22B0019200000 Obtaining zinc otherwise than by distilling 1
C22B0019280000 from muffle furnace residues 1