JILIN MAINLAND IMPORT AND EXPORT CO., LTD.

The PT zinc oxide sweetening agent is one kind of new highly effective sweetening agent, has is bigger than the surface area, the penetration sulfur a

The HT hydrogenation conversion catalyst has the outstanding hydrogenation transformation and alkene saturated activeness. Also low temperature active

This spatial glass drying agent may simultaneously adsorb in the spatial glass moisture content and the residual organic matter, simultaneously can fu