Concrete, referred to as "concrete (tóng)": refers collectively aggregate cementitious material cemented into the overall engineering composites. The term usually refers to concrete speak with cement as a binding material, sand and stone as aggregate; and water (with or without additives and admixtures) with a certain proportion, by mixing, molding, conservation obtained Concrete cement, also known as ordinary concrete, it is widely used in civil engineering. Cement factory quality certification manufacturer shall stamp of quality department; its test report shall test ID cement hollow bricks for the information laboratory to verification and should have a clear conclusion cement products mold, signed and sealed complete; Manufacturers of 28-day strength of cement can not repay a single missing; use the unit must be carefully view the validity of cement, cement for expired, re-examination must be done and be careful to check whether the actual value of the test report in line with standard values ??in the Specification; For quality problems cement Jiangxi Cement shares, according to data in the test report can be demoted, but must be approved by the relevant technical Signature, and shall indicate the name of the project, the site uses. If the continuous construction of the project, the time of its two adjacent cement test shall not exceed the expiration date. Acid-proof cement, cement Wuhan (certified), provided by the Hong Kong cement Hongshan District of Wuhan pavilion cement operation. Hongshan District of Wuhan pavilion cement business unit (www.whltsn.com) (www.hbltsn.com) was Wuhan, cement and products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Wuhan cement leadership with the staff warmly welcome all inquiries negotiations to create a better future Wuhan cement.