Third: "ask" the main source of the mud is to ask cement manufacturers and production processes, to see "origin" is normal, whether advanced production technology. Currently, the majority of cement fineness illegal building materials decoration products on the market with a small shaft kiln cement production process, not only the product quality is very unstable, is also the enemy of environmental protection; and a number of professional manufacturers adopt new dry kiln production, the use of advanced computer technology control and management, to ensure product quality and stability of cement. Cement in the hardening process, if you do not create an uneven cement volume deformation, no cracks, bending and other phenomena, is called soundness qualified; if after cement hardening volume change produced uneven cement composition, harmful expansion cement proportion, will make building cracking, or even collapse, is called stability failure. Such cement can not be used in the project. Cement composition, Jianghan cement, cement supplied by Wuhan Hongshan District of Wuhan pavilion cement operation. Hongshan District of Wuhan pavilion cement business unit (www.whltsn.com) (www.hbltsn.com) strong, credible, in Wuhan of cement and related products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wuhan cement into the brilliant and you work for a better future!