How about Chengdu Kangmei putty powder?

Good, trustworthy.

Chengdu Kangmeijia Decoration Materials Co., Ltd.’s business scope includes sales of: building materials, furniture, wood products, Wujinjiaodian, chemical products (excluding dangerous goods), agricultural and sideline products, automobiles, and mechanical equipment. Food business. Hotel business management. Landscaping projects. Design and construction of indoor and outdoor decoration projects. Machinery and equipment rental. Wide range and trustworthy.

As there are more and more brands of putty powder products on the market, the prices also vary. Generally speaking, the price of 20kg of putty powder is around 70 to 100 yuan. The price of putty powder for exterior walls is about twice as high.