Min. Order Reference FOB Price
10000 Pieces US$0.14 / Piece
Product Description
1. The right hand held a swab to wipe bilateral pharyngeal tonsils and posterior pharyngeal wall for sampling. 2. Immerse the swab head into the sampling tube, squeeze the head of the swab in the sampling solution for several times, break the tail of the swab and discard the tail of the swab. 3. ...