Lanzhou huibang biological chemical technology Co., LTD located beside the Yellow River in Lanzhou,China,The company develops, manufactur-es and markets pharmaceutical intermediates, chiral reagents, dye inter-med iate and other organic compounds. Ourcompany has well-trained staffs and advanced facilities.With excellent service, the company developed very rapidly since its establishment years ago. The main products are chiral aminoalcohols, oligoglycols, borate esters, thiophenes, triarylamines ...