EPTFE membrane manufacturer / supplier in China, offering Sst IP68 Waterproof Snap-in Vent Valve for ECU, Automotive & Outdoor Electronics, PC Material, Pressure Equalization, Dust/Oil Resistant, UL/ISO/SGS Certified, D15 Press Fit Vent with Oleophobic Coating Anti-Collapse Valve for Liquid Containers, Acoustic Vent Membrane IP68 - Self-Adhesive Eptfe Tape for Electronics, Waterproof & Breathable and so on.