built in breathing valve for tank

{"cid":"91224153","title":"6mm Air Source Port Aluminum Alloy Built in Breathing Valve for Tank Truck","imgUrl":"https:\/\/img.chinax.com\/nimg\/5c\/34\/d474259547eff98234a1f4aec4ba-200x200-1.jpg","attrs":{"Price":"$30\/pieces 1-9 pieces","Brand Name":"HUATE","Model Number":"\/","Minimum Order Quantity":"1","Delivery Time":"30","Place of Origin":"Hubei, China","pump":"\/","Material":"Aluminum Alloy","Power":"\/","Accuracy":"\/","Nozzle":"\/","ambient temperature":"\/","Working Voltage":"\/","Flow Rate":"\/","Warranty":"1year","Certificate":"\/","Type":"breathing valve","Product name":"Aluminum Alloy Built-in Breathing Valve","Design tempreture":"-20~+50","Air source port":"6mm","Main Material":"aluminum alloy","Air source pressure":"0.5~0.8Mpa","Installation method":"thread","Use":"Maintain constant pressure in the tank","Packaging Details":"Wooden box","Payment Terms":"T\/T","Supply Ability":"Meet large-scale orders","Certification":"CCC"}}