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Safety Vacuum Receiver Adapter, for 3 or 4 Small Flasks, with ASTM & DIN Joints With Detachable GL14 PP Screw Connector Kit-Tube od Φ8mm, 140°C, 안전 진공 어댑터 Safety Vacuum Receiver Adapter, for 3 or 4 Small Flasks, with ASTM & DIN Joints With Detachable GL14 PP Screw Connector Kit-Tube od Φ8mm, 140°C, 안전 진공 어댑터 Safety Vacuum Receiver Adapter, for 3 or 4 Small Flasks, with ASTM & DIN Joints With Detachable GL14 PP Screw Connector Kit-Tube od Φ8mm, 140°C, 안전 진공 어댑터 Safety Vacuum Receiver Adapter, for 3 or 4 Small Flasks, with ASTM & DIN Joints With Detachable GL14 PP Screw Connector Kit-Tube od Φ8mm, 140°C, 안전 진공 어댑터