Cowie® PTFE Stopcock, for Tubing and Hose, for Vacuum(5mmHg)/Pressure(1bar) Good High Temp·Chemical·Corrosion Resistance, with Bore 2~14mm, PTFE 밸브/콕 Cowie® PTFE Stopcock, for Tubing and Hose, for Vacuum(5mmHg)/Pressure(1bar) Good High Temp·Chemical·Corrosion Resistance, with Bore 2~14mm, PTFE 밸브/콕 Cowie® PTFE Stopcock, for Tubing and Hose, for Vacuum(5mmHg)/Pressure(1bar) Good High Temp·Chemical·Corrosion Resistance, with Bore 2~14mm, PTFE 밸브/콕