... : PP 3. OEM accept 4. ISO9001 2008 certificate Colorful Automatic Valve Used on Storage Bags Features 1. material: PP, PE, POM ... , yellow 4. certification: ISO9001-2008 5. kind: mini valve, mini Ninja valve, switch valve, slide valve, automotive valve 6. design and molding developed by Japan Function ... carton. Payment Terms T/T, L/C, etc colorful automatic valve used on storage bags