Cowie® PTFE Flat Head Stopper, Excellent for Chemical·Corrosion·Temperature ResistanceNon-Contaminating, Trapezoidal Ring give High Vacuum Performance and Reduce Seizure, -200℃+280℃, , PTFE 스토퍼 > 스토파/캡
Cowie® PTFE Flat Head Stopper, Excellent for Chemical·Corrosion·Temperature ResistanceNon-Contaminating, Trapezoidal Ring give High Vacuum Performance and Reduce Seizure, -200℃+280℃, , PTFE 스토퍼 > 스토파/캡