Hengtong gypsum block 
 Characteristics of gypsum plaster block with a block of the inherent characteristics of gypsum construction materials, can be summarized in four words: safe, comfortable, fast and environmentally friendly. Safety: mainly refers to fire resistance. According to foreign test results, calcium sulfate dihydrate crystal water in the decomposition rate of about 6mm thick, every 15 minutes. Based on projections, 80mm thick gypsum block decomposition of the time required nearly four hours, the fire resistance is superior. Comfort: Gypsum is a "warm" and "respiratory function." According to the different gypsum materials, bulk density, thermal conductivity of gypsum building materials in the 0.20 ~ 0.28W/mK between the thermal conductivity, heat transfer is slow, the body contact feeling "warm"; gypsum building materials, "respiratory function" due to its porosity. These pores in the indoor humidity, the water can be inhaled, whereas water can be released, can automatically adjust the indoor humidity can make people feel comfortable. Rapid: is the speed of production of gypsum building materials, construction and high efficiency. General building final setting time of gypsum in the initial 6 to 30 minutes, and cement products compared to the condensation hardening fast ejection cycle one hour up to 4 to 5 times; such as the use of gypsum calcining process quickly, the setting time can be further reduced. Gypsum is a dry-block construction, block around the mouth and tongue and groove with prices, fast masonry, walls without plaster, local leveling can be carried out after finishing with the traditional wall of comparison, the duration can be greatly reduced. Environmental Protection: is gypsum energy and materials, can be discarded, recycled, health, does not pollute the environment. In the cement, lime, gypsum three cementitious materials in the production process, the temperature required to produce the final product, the lowest energy consumption of buildings calcined gypsum, cement is only 1 / 4 lime 1 / 3, significant savings in energy; plaster wall is a wall of light, different thickness of gypsum plaster board and block, the weight per square meter wall were 27 to 35 kg and 64 to 105 kg; industrial emissions from industrial by-product dihydrate gypsum, if not used, will take up a lot of land, or even cause secondary pollution to the environment, but its proper treatment, it is the production of gypsum building materials, high-quality raw materials; building plaster and then can be turned into gypsum hydration , crushing, and then even after calcined gypsum as a raw material for production; gypsum non-toxic, but also food, medicine, building materials, gypsum is not only a health, or one is not harmful to humans, healthy building materials; plaster manufacture of gypsum construction materials, their production and application process does not emit emissions, waste, waste water and harmful substances, does not pollute the environment. The application of gypsum blocks and cement binder compared to the strength of the lower gypsum cementitious material, water resistance is poor, which defines the scope of its use should be to the main room, and for non-load-bearing parts. According to this position, more than 100 years in the construction industry, the development of national science and technology workers, many suitable for indoor use of gypsum in building materials, plaster and many more abroad