EPTFE membrane manufacturer / supplier in China, offering Spider M12*1.5 LED Lighting Hydrophobic IP 68 Waterproof Air Vents Air Permeable Plastic Valves, Spider Aluminium-Plastic Waterproof Breathable Foam Vent Wads with Holes Bottle Stopper for Chemical Use, Sst IP68 Waterproof Snap-in Vent Valve for ECU, Automotive & Outdoor Electronics, PC Material, Pressure Equalization, Dust/Oil Resistant, UL/ISO/SGS Certified and so on.