VIETNAM BLUE STONE - THANH HOA BLUE STONE - BLUESTONE YL - YEN LAM BLUE STONE QUARRY.

 

Vietnamese Blauwsteen  - Vietnamesischer Blaustein - Vietnamienne pierre bleue - Asian Blue Limestone - Asian Bluestone - Vietnamese Blue Limestone - Vietnamees Hardsteen -  Naturstein - Natuursteen - Vinh Blue Limestone - Ha Trung Blue Limestone - Yen Lam Bluestone.