That place in Guyang sells white cement.

You can go to Guyang's building materials market to buy it. According to relevant public information, white cement can be bought in the local building materials market. Guyang Shuanghai Building Materials Market Address: East of Guangzhong Holiday Hotel Guangrong Street, Guyang County, Baotou City. White Portland cement is a kind of hydraulic cementing material made of white Portland cement clinker with less iron oxide content, appropriate amount of gypsum and mixed materials (limestone and kiln ash), which is called white cement for short.