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, suiping indoor environment testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of aptitude test and testing laboratories. Frost resistance material refers to a material in the water saturation, can withstand repeated freezing and thawing cycles without being damaged, Miyang indoor environment testing, strength properties are not significantly reduced. Antifreeze grade material refers to a material specimen standard size, in water saturation, after being subjected to the standard of freezing and thawing, environmental testing, and its strength is not severely degraded, the quality is not a significant loss, when the performance is not obvious decline, experienced freeze-thaw cycles. Materials frost resistance with antifreeze grade FN expressed as F100 indicates that the material under specified conditions, Xiping indoor environment testing, can withstand up to 100 freeze-thaw cycles without being damaged. 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. Building materials, with the development of human society and improve scientific and technological productivity level and gradually developed. In primitive societies, people began to use simple tools, the use of soil, grass, reed, mud, bamboo, wood, stone and other natural materials to build simple houses, resist the invasion of nature and beasts. With the development of productive forces appeared burnt earth products, brick, tile, lime, glass and other building materials from natural materials artificial materials stage to stage. Modern construction materials mainly used in steel, cement, concrete, reinforced concrete, plate glass, adhesives, artificial board, etc., appear to make the building of modern construction materials technology has undergone unprecedented changes. 20th century materials science formation and development, and promote the improvement of performance and quality of building materials, new building materials, green building materials continue to come out, such as plastic, aluminum, stainless steel, high-performance concrete, insulation materials, waterproofing materials, energy-saving materials Wait. New building materials are being widely used in building construction, for a variety of different needs building provided the material guarantee. Environmental testing, Henan malpractice testing, indoor environment testing Shangcai malpractice by Henan Construction Engineering Inspection Limited. Environmental testing, Henan malpractice testing, indoor environment testing Shangcai Henan malpractice 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 or pictures on this page, for the latest information, contact: Wang Wei.