for the following products
Carbazochrome sodium sulfonate and 1H-Indole-2-sulfonicacid, 5-[2-(aminocarbonyl)hydrazinylidene]-2,3,5,6-tetrahydro-1-methyl-6-oxo-,sodium salt (1:1)
Located in Hangzhou National Hi-Tech Industrial Development Zone, Hangzhou Zhongqi Chem Co.,Ltd is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries.
Our advantage :
1.We do not simply provide chemicals, we provide chemical solutions and expertise;
2.We have trained, highly effective team to solve the problem at the first time;
3.Our QMS (quality management system) ensures the product quality strictly;
4.Strong rese...
