... suction catheter for single use1.Made from non-toxic PVC,medical grade transparent,soft,clear2.Size:F6-F183.Type:with one way ... easy to operate,non-irritating1.Made of non-toxic PVC, medical grade transparent. 2.Sterilized by ethylene oxide gas3.Size:F4-F244 ... minutes.Shaanxi Longstar company specialized in making various healthcare and medical supplies.Quality conformity with ISO,CE,FDA standard and ...