Complaint
The quality of building gypsum is in accordance with Chinese National Standard "Gypsum Powder" (GB9776-2000), and should meet the following requirements:
| No. | Item | unit | Indices |
| 1 | Initial time | min | ≥6 |
| 2 | Final time | min | ≤13 |
| 3 | Bending strength of 2 hours | MPa | ≥2.0 |
| 4 | Content of CaSO4·2H2O | % | ≤5% |
| 5 | Content of CaSO4·1/2H2O | % | ≥75% |
| 6 | Content of CaSO4III | % | ≤5% |
1. Suitable for long distance transportation
2. Small or key parts loaded in iron boxes
3. Iron boxes with welding
4. Naked
5. Please mark it in the sales contract for special package
Brief Introduction
Natural gypsum generally includes dehydrate gypsum and anhydrous gypsum. In order to get the valuable materials, generally, we get semi-hydrated gypsum through heating the dehydrate gypsum.
Main Technology
gypsum mine ->first breaking ->second breaking ->grinding ->calcining ->aging ->finished products (CaSO4.1/2H2O)
Raw Materials
Content of CaSO4.2H2O in gypsum mine 80%
* The predecessor is stated-owned enterprice,was built in the 1970s.
* A large manufacturer of integrated supply dedicated in researching,manufacturing, trading of building material machinery and construction materials .
* CE approved by the EU
* ISO 9001 certificate
*We have professional team and rich experience.
* We provide perfect after-sales service to solve customers' worries.
1.Q:Are you a factory or trading company?
A:We are a factory.
2.Q:Where is your factory located?
A:Our factory is located in Shijiazhuang, Hebei Province, China. All our clients, from home or abroad, are warmly welcome to visit us!
3.Q:How can I know more about the product?
A: We are honored to send you some pictures and videos about our product. And we welcome every customer visit our factory.
4.Q:How does your factory do regarding quality control?
A:Quality is priority. Factory director always attach great importance to quality controlling from the beginning to the end. Our factory has gained CE and ISO9001 authentication.
