| Ọkọlọtọ China (GB) | American Standard (ASTM) | Ọkọlọtọ Japanese (JIS) | ọkọlọtọ British (BS) | German Standard (DIN) | Ọkọlọtọ French (NF) |
| H62 | C28000 | C2800 | CZ108 | CuZn37 | CuZn37 |
| H63 | C27400 | C2740 | - | - | - |
| H65 | C26800 | C2680 | CZ107 | CuZn36 | CuZn36 |
| H68 | C26200 | C2620 | CZ106 | CuZn30 | CuZn33 |
| H70 | C26000 | C2600 | CZ101 | CuZn30 | CuZn30 |
| H80 | C22000 | C2200 | CZ106 | CuZn30 | CuZn30 |
| H90 | C10200 | C1020 | C101 | Cu-DHP | Cu-DHP |
| T2 | C11000 | C1100 | C110 | Cu-ETP | Cu-ETP |
| T3 | C12000 | C1200 | C122 | Cu-DLP | Cu-DLP |
| T4 | C12200 | C1220 | C106 | Cu-DHP | Cu-DHP |
| TU1 | C10100 | C1010 | - | - | - |
| TU2 | C10200 | C1020 | C101 | Cu-ETP | Cu-ETP |
Ekwesiri iburu n'uche na mba na mpaghara dị iche iche nwere ike ịnwe usoro ọkọlọtọ ihe eji eme ọla kọpa nke ha, ya mere tebụl ntụnyere bụ naanị maka ntụaka.N'ime ngwa ndị akọwapụtara, a ga-ahọrọ ihe ọla kọpa kwesịrị ekwesị dabere na mkpa na gburugburu ebe obibi.
Oge nzipu: Jun-21-2023