Continuous take, also from different parts of the 20 or more samples taken the same amount of cement, a total of at least 10 kg. Test and stay kind of white cement samples obtained for each number should be thoroughly mixed. Divided into two equal parts, one by a cement plant process according to the standard tests specified in Chapter III; a sealed and stored for three months in Wuhan cement agent to time with questions submitted by the national inspection authorities designated retest or arbitration . Producing the maximum amount of the five cement, often referred to as the five varieties of cement. According to the project requirements Wuhan cement plant, in the production process can change the chemical composition of cement clinker, and thus there is a difference generated by various mineral content, such as high-temperature oil well cement requirement for calcium silicate content increases; dam with concrete is required the content of calcium aluminate and tricalcium silicate low; white Portland cement requires iron oxide content of less than 0.5%; rapid hardening cement should be higher tricalcium silicate content. Wuhan cement wholesale, gazebo cement (certified), cement provided by the 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. Cement leader in the pavilion with the staff warmly welcome all inquiries negotiations to create a better future for cement pergola.