Ningbo Sales silent expanders, Ningbo rock crushing agent, free blasting procedures carbatex silent broken agent using a special high-temperature calcination kiln clinker with a small amount of additives formulated, is an efficient and safe crushed material for safe removal of concrete building and exploitation of cutting marble, granite and other technical indicators. Jiaze HSCA broken agent with water into a slurry of rock or concrete poured into the borehole, after 3 to 24 hours at no vibration, no dry sound, no flying rocks, no harmful gases state. Crushing or cutting jobs. The Jiaze products over the years has been widely used and sold abroad. Jiaze silent broken agent is calcium carbonate and calcium oxide powder composed of gray matter 0--250 mesh, it is alkaline. Suitable for concrete, removal of concrete, rock, masonry broken. After loading this carbatex drilling products, 6--24 hours demolitions expansion plunder broken during crushing silent, no vibration, no pollution, no flying rocks, the surrounding buildings and pedestrians make no impact on the slowly being demolitions cracks. Jiaze is a safe and effective product. ? Silent expansive scope of a demolition of concrete or reinforced concrete (1), newly poured concrete over parts of the filling removed, such as pile caps, piers and the like; (2), the old bridges, piers, roads, dams, culverts, modification or removal of pumping stations and other concrete facilities; alteration or demolition; second, crushing rock excavation, tunneling (1), building foundation, excavation and crushing rocks pile caisson construction; (2), highway widen the renovation project of broken rock foundation excavation; three, the stone mining and cutting. Granite, marble, white marble and other stone blocks economics of mining and cutting, the finished product rate increased by 3 to 4 times; IV.Project broken (1), the control of the pre-crack construction broken; (2), zhayao crushed two secondary crusher; five, instead of anchoring material tunnel, culvert construction; and so on.