Hansen & Rosenthal (H&R) GmbH & Co. KG

SYNCHEM OHG synthesis rare chemicals from the area of organic chemistry. SYNCHEM OHG offers a comprehensive product range from building blocks to intermediates and reagents for the chemical and pharmaceutical industry, research institutes and analyti

Changzhou Langjie Import and Export Co., Ltd. is a professional company engaged in the import and export of chemicals. The company's main business is distributed in organic chemistry, inorganic chemistry, raw materials, intermediates, pigments, dyes,