| |||
| decorative etching | |||
| multitone etching | |||
|
декоративно-художественное травление : 2 phrases in 1 subject |
| Silicate industry | 2 |
| |||
| decorative etching | |||
| multitone etching | |||
|
декоративно-художественное травление : 2 phrases in 1 subject |
| Silicate industry | 2 |