Main Products: Balancer, Algaecide, Flocculent and Disinfectant. Qingdao Hot Chemicals Co., Ltd. specializes in the repackaging of the swimming ... its factory as well as diversifying its products. Hotchem's main products are Balancer, Algaecide, Flocculent and Disinfectant. ... and spa chemicals has professional experience to repackage products in small packages.The available packages are mainly the ...