manhole cover with gas pressure 0 5 0 8mpa

{"cid":"91224153","title":"Single Breathing Valve Manhole Cover For Fuel Transporting Tank Trucks Pressure 0.5 - 0.8mpa","imgUrl":"https:\/\/img.chinax.com\/nimg\/ef\/69\/8231f411370095c832de964057dc-200x200-1.jpg","attrs":{"Price":"$18\/units 1-9 units","Brand Name":"CHUANCHU","Model Number":"\/","Minimum Order Quantity":"1","Delivery Time":"7-30 days","Place of Origin":"Hubei, China","Packaging Details":"Wooden box","Payment Terms":"T\/T","pump":"\/","Material":"Stainless Steel","Power":"\/","Accuracy":"\/","Nozzle":"\/","ambient temperature":"\/","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","Supply Ability":"Meet large-scale orders"}}