黄铜 CuZn28 | CW504L | CuZn28 | 2.0261
符合各种标准的黄铜标记：
| ISO: | CuZn28 |
| EN: | CW504L |
| DIN: | CuZn28 |
| Wnr: | 2.0261 |
| NFA FR | - |
| UNS USA | C25600 |
| BS GP old | - |
| PN | - |
化学成分（根据 EN 1652 / EN 12164）：
| CuZn28 | |
| Cu [%] | 71-73 |
| Al [%] | ≤0,02 |
| Fe [%] | ≤0,05 |
| Ni [%] | ≤0,3 |
| P [%] | - |
| Pb [%] | ≤0,05 |
| Sn [%] | ≤0,1 |
| Si [%] | - |
| As [%] | - |
| Mn [%] | - |
| Sb [%] | - |
| Zn [%] | reszta |
| 其他 [%] | ≤0,1 |