Vacuum Silicone Tubing Hose 1 8" 3 16" 1 4" 5 16" ID 1 8" Wall Thick 5ft Blue High Temperature for Engine Fuel Hose Diameter Before Shrink: 19mm Diameter Before Shrink: 19mm 3 4 inch Widely used in electrical machinery What should I notice Silicone vacuum hose
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