... max 2 colors printing4.Accept OEMSpecification: Production Name ESD Moisture Barrier Bags TypeFlat-open,Envelope & Zip lock etc. ... sides sealing & Three sides sealingMaterialPET/AL/NY/PEFeatures1.moisture proof ,oxygen barrier and light isolation properties 2.Vacuumize ... protect inside products from static, electromagnetic interference, and moisture.2, The bag is mainly applied to pack electronic ...