ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C22B0019300000 from metallic residues or scraps 1
C22B0019320000 Refining zinc 1
C22B0019340000 Obtaining zinc oxide (purifying zinc oxide C01G0009020000) 1
C22B0019360000 in blast or reverberatory furnaces 1
C22B0019380000 in rotary furnaces 1
C22B0021000000 Obtaining aluminium 1
C22B0021020000 with reducing 1
C22B0021040000 with alkali metals 1
C22B0021060000 Refining 1
C22B0023000000 Obtaining nickel or cobalt 1
C22B0023020000 by dry processes 1
C22B0023060000 Refining 1
C22B0025000000 Obtaining tin 1
C22B0025020000 by dry processes 1
C22B0025060000 from scrap, especially tin scrap (by electrolytic process C25C0001140000) 1