... 2. material: PP 3. OEM accept 4. ISO9001 2008 certificate Blue Turn Valve for Vacuum Compressed Bags1. Material: PP 2. Size ... valve, switch valve, turn valve 4. Color: pink, yellow, green, blue, white, black, coffee 5. Usage: be used on vacuum compressed bags ... Terms: L/C, T/T 8. Delivery Port: Ningbo, China blue turn valve for vacuum compressed bags