ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C23C0008620000 only one element being applied 1
C23C0008640000 Carburising 1
C23C0008660000 of ferrous surfaces 1
C23C0008680000 Boronising 1
C23C0008700000 of ferrous surfaces 1
C23C0008720000 more than one element being applied in one step 1
C23C0008740000 Carbo-nitriding 1
C23C0008760000 of ferrous surfaces 1
C23C0008780000 more than one element being applied in more than one step 1
C23C0008800000 After-treatment 1
C23C0010000000 Solid state diffusion of only metal elements or silicon into metallic material surfaces 1
C23C0010020000 Pretreatment of the material to be coated (C23C0010040000 takes precedence);; 1
C23C0010040000 Diffusion into selected surface areas, e.g. using masks 1
C23C0010060000 using gases 1
C23C0010080000 only one element being diffused 1