... place:Shandong limestone size:tile,slab Mongolia blue granite is a kind of volcanic rock with good strength and high ... it to Europe,Japan,Canada and USA etc at present. Blue Limestone / Bluestone ColorsBlue,Grey,BlackFinishedpolished,honed,flamed,bushhammered,sandblasted ... every process to ensure quality standards and punctual delivery Beacuse of blue limestone's quarry had been prohibited to mine by ...