brass back up wing union seal

{"cid":"91191996","title":"FKM HNBR High Temperature Resistance Fig 1502 Weco Wing Unions Seals with Brass or Stainless steel For Sour Gas Service","imgUrl":"https:\/\/img.chinax.com\/nimg\/c3\/6f\/8cc162376f1dd012c8e4469d7013-200x200-1.jpg","attrs":{"Price":"0.1-2usd\/pcs","Brand Name":"SHQN","Model Number":"Weco Hammerless Union Seals","Minimum Order Quantity":"500PCS","Delivery Time":"5-20days","Size":"1\" 1.5\" 2\" 3\" 4\" 6\" 7\"","Pressure":"Confirm complete union assembly rating","Hardness":"80\u201390 Shore A options; confirm specified compound","Temperature Range":"Confirm for the selected compound and union assembly","Color":"Black Or Custom Color","Place of Origin":"Shanghai, China","Payment Terms":"T\/T, Western Union, L\/C, Paypal","Supply Ability":"50,000pcs per week","Packaging Details":"40*40*40cm carton packing","Material:":"Buna, FKM, HNBR, PTFE","Types":"All-rubber, brass or stainless steel backing per union drawing","Feature":"Compound and backing matched to the specified union","Brand":"Royal Way","Using":"Replacement sealing in specified flow-line union connections","MOQ":"500PCS"}}

{"cid":"91226335","title":"Male Thread Fig 207 Hammer Union Alloy Wing Union","imgUrl":"https:\/\/img.chinax.com\/nimg\/f0\/c2\/bcb07af8324cd4865a559398b977-200x200-1.jpg","attrs":{"Brand Name":"XI'AN RIG","Model Number":"Fig 207","Minimum Order Quantity":"1 pcs","Delivery Time":"in stock","Thread":"Male Thread","Material":"Alloy","Payment Terms":"L\/C, T\/T","Packaging Details":"Wooden Box","Applicable Medium":"Mud, Water, Natural Gas, Crude Oil","Type":"Hammer Union","Place of Origin":"China","Power Source":"Manual or Others","Certification":"API","Operation Pressure":"Atmospheric Pressure"}}