ซื้อDisposable Needle No.23x1, Disposable Needle No.24x1, Disposable Needle No.26x1, Suction Catheter No.6, Suction Catheter No.8, Suction Catheter No.10, Suction Catheter No.14, Suction Catheter No.16, Thoracic catheter No.32, Thoracic Catheter No.36 โดยวิธีเฉพาะเจาะจง