built in breathing valve for fuel tank

{"cid":"91224153","title":"Aluminum Alloy Built-in Breathing Valve for Fuel Tank Truck Medium Compressed Air 6mm Air Connection","imgUrl":"https:\/\/img.ismap.com\/nimg\/ca\/28\/8d921f0ff04becc8cdb1f52137c2-200x200-1.jpg","attrs":{"Price":"$18\/units 1-9 units","Brand Name":"CHUANCHU","Model Number":"\/","Minimum Order Quantity":"1","Delivery Time":"7-30 days","pump":"\/","Material":"aluminium","Power":"\/","Accuracy":"\/","Nozzle":"\/","ambient temperature":"\/","Place of Origin":"Hubei, China","Working Voltage":"\/","Flow Rate":"\/","Warranty":"1YEAR","Type":"parts of oil tank truck","Body Material":"Aluminum Alloy","Medium":"compressed air","design tempresure":"-20\u00b0~+50\u00b0","air connection":"6mm","Applicable gas source pressure":"0.5-0.8mpa","Installation method":"Threaded type, flange type","Use":"Maintain constant pressure inside the tank","Application":"OIL TANK TRUCK","Packaging Details":"Wooden box","Payment Terms":"T\/T","Supply Ability":"Meet large-scale orders"}}