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