| • lead shielding | |
| सीसा: lead plumber graphite plumbum Saturn pencil lead | |
| परिरक्षण: preservation shielding preserving | |
सीसा परिरक्षण अंग्रेज़ी में
[ sisa pariraksan ]
| • lead shielding | |
| सीसा: lead plumber graphite plumbum Saturn pencil lead | |
| परिरक्षण: preservation shielding preserving | |
