Natural building stones are rocks of various origins which are processed and sized to be used in construction. Marble, traver tine,granite, andesite, basalt and diabase are among impor tant building stones.
| Company Name | : | ROK ENERJİ VE MÜHENDİSLİK A.Ş. |
| Location | : | İSTANBUL / KARTAL |
| Web Site | : | www.roktr.com |
| Tel | : | +90(216) 511 59 58 |
| Fax | : |
| Company Name | : | SEDAT AKGÜL ULTRON DIŞ TİCARET İTHALAT VE İHRACAT |
| Location | : | İSTANBUL / BAĞCILAR |
| Web Site | : | |
| Tel | : | +90(212) 437 28 68 |
| Fax | : |