... then the complex flows laterally and is finally captured by recombinant TB antigen protein coated on the test ... ,forming a red line, which is visible by naked eyes. The color shades depend upon ... control line (C Line) will difinitely be captured by protein A coated on it, forming the other ... 60 minutes or incinerated prior being discarded. Manufactured by Zhuhai Encode Medical Engineering Co, LtdAdd: 20, ...