China Aijiren PP 9mm HPLC PTFE/Silicone Septa Screw Cap for 9-425 Screw Cap, ND9 Screw Cap, ND9 Screw Seals manufacturer / supplier in China, offering Aijiren PP 9mm HPLC PTFE/Silicone Septa Screw Cap for 2ml Aijiren Vial, 5ml Nasopharyngeal Vial Sampling Transport Tube, 5ml PP Self-Standing PP Viral Trnasport Leakproof Tube and so on.