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 Luoyang indoor environment testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing Lab. The volume of material composition, the pore structure of the many properties of materials, such as strength, water absorption, impermeability, frost resistance, thermal conductivity and acoustic absorption and so has a significant impact. Pore ??structure characteristics mainly refers to the shape of the hole (communication hole and closed pores), if the uniform pore size and distribution and the like. Not only through communication holes each other and the outside world, while closed pores are not communicating with each other and with the outside world cut off. Porosity and pore by pore size into coarse holes. Zhengzhou general indoor environment testing, the greater the porosity, the more the pores, the greater the harm; conversely environmental testing, the properties of the material are significantly improved. 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. National Standards are approved by national standardization authorities released on national economic and technical development of great significance, and uniform standards for use in the country. Other standards at all levels should be in line with national standards. The number of national standards by the national standard code, national standards issued sequence number and national standards issued constitute reign. Such as: national mandatory in 2007 to develop 175 Common portland cement standards for "Common Portland cement" (GB175-2007). Environmental monitoring environmental malpractice detection _ _ Anyang indoor environment testing malpractice by Henan Construction Engineering Inspection Limited. Environmental monitoring environmental malpractice detection _ _ Henan Anyang indoor environment testing is the increasing prevalence of Construction Engineering Testing Co., Ltd. (www.hnrsjc.cn) (www.rsgcjc.com) this year introduced a new upgrade, the above picture is for reference only, please call Tel This page or image on to obtain the latest information, contact: Wang Wei.