Cowie® PTFE Flexible-Bellows Vacuum Joint Connector, -200°C+280°C With 14/-~45/- Joint-Cone & Socket, 휘어지는 PTFE Joint 연결관 Cowie® PTFE Flexible-Bellows Vacuum Joint Connector, -200°C+280°C With 14/-~45/- Joint-Cone & Socket, 휘어지는 PTFE Joint 연결관