Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, is one of the qualification place in Henan Province since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratories. Mineral material having pozzolanic natural or artificial, called pozzolana mixed material. The so-called ash sex, refers to a material ground into a fine powder, mixing with water alone does not have the water hardness, but at room temperature water with a small amount of lime can be formed with a hydraulic properties of compounds. Pozzolanic material contains more active SiO2 and Al2O3, they can and Ca (OH) 2 at room temperature from a chemical reaction, respectively, to generate hydrated calcium silicate and hydrated calcium aluminate, Romer construction engineering testing, thus having a water hardness. Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, is one of the qualification place in Henan Province since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, construction engineering testing Yucheng, wall detection, detection of roads and bridges, air defense projects to detect a number of aptitude test and testing laboratories. Calendering the ingot is (or steel) at room temperature or under heating conditions, engineering test, rolled steel processing to change the shape of the process. After the steel after rolling, and their microstructure and mechanical properties will change. Heat treatment is the steel for process heating and cooling process in order to achieve the purpose of improving the organization and performance of steel. Changes latency and processing steel in the hot and cold processing performance occurs, aging called hardening steel. Mianchi Building Engineering Testing | malpractice Test engineering (certified) | Engineering Test malpractice by Henan Construction Engineering Inspection Limited. Henan malpractice Construction Engineering Testing Co., Ltd. (www.hnrsjc.cn) (www.rsgcjc.com) is a leader in Zhengzhou, construction, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In malpractice detected leadership with the staff warmly welcome all inquiries negotiations to create a better future malpractice detected.