he company engages in the development and production of steroid hormones, HongKong Kangrui Bio-Tech Co.,Ltd founded in 2003.Our company has been committed to: 1.The development and custom processing of APIs and intermediates of steroid hormones. 2.The sales and wholesale of APIs and intermediates. 3.The development and production of growth hormone and peptide hormone. 4.The inspection to APIs and intermediates, including purity and heavy metals etc. Our company adheres to the management principl...