Zibo Zeyuan Import & Export Co., Ltd (hereafter referred to Zeyuan), a comprehensive researching, manufacturing, and trading enterprise, located at Zibo city which be known as center of industry in Shandong Province. Company is engaged in pharmaceutical intermediates, APIs, machinery castings production and sales. Its subsidiary bodies including R & D department, sales department and pilot scale production base. Zeyuan has set up first-class labs, testing centers, workshops and a number ...