Bioassay Technology Laboratory (BT Lab) is a brand of Shanghai Korain Biotech,. Co Ltd specialized in lab supplies of ELISA kit, antibodies,protein for life science research. To meet every single need of the customer we aim to provide high quality at best price and service with our professional staff. Over the past eight years we focus on improvement and update of our system and service. If you need any assistance, do not hesitate to let us know.