Changzhou Gold Stone Co.,LTD is specialized in manufacturing and researching various Steroids powder ,Finish produts and peptides products. They are widely used in medicines, food, beverage, cosmetics, food supplements, health products and other industries. Our chemical raw material products have stable and reliable quality, most of our products conform to the requirements of FCC, USP and BP,it is mainly sold to pharmacy company and health care company in abroad, like USA, Canada, Austria, Austr...