Longchang abound Qingshi , and have a long history of. Built in the Ming-Qing-year period Longchang ancient arch base for hundreds of years after wind and rain, so far stands in the north and south county, in 2001 the State Council, announced as the national key cultural relics protection units. The stone for the silica cemented quartz sandstone, block-degree, high hardness, joints, cleavage is not development, dense texture, color purity. Wind of strong acid and alkali, non-radioactive contamination. Apply to change boards, stone carving, relief and other craft production, household decoration, urban public places and tourist attractions excellent decorative building materials. 2.5 tons per cubic. Qingshi carved with Buddhist statues, lion, the dragon is far smaller export to the U.S., Japan, the United Kingdom. QQ: 76606153 Tel: 15,817,346,934