nbr material parker back up rings

{"cid":"91222065","title":"Industry Standard Elastomer Material NBR FKM FPM EPDM PU Silicon Flat Rubber O-ring Seals","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/63\/ba\/e906716c8f2d1d59d83cfe4e9636-200x200-1.jpg","attrs":{"Price":"$0.19\/pieces 1000-4999 pieces","Brand Name":"ORK","Model Number":"AS568 & PG Standard O-Rings","Minimum Order Quantity":"1000 pieces","Delivery Time":"7-10 work days","Place of Origin":"Jiangxi, China","Certification":"REACH \/ ROHS \/ ISO9001 \/ IATF \/ SGS \/ FDA","Payment Terms":"T\/T , paypal , wechat , Alipay","Supply Ability":"100000000000\/week","Packaging Details":"PE bags inside , cartons outside , cartons on pallets. Or as your requirements .","Size":"AS568 & PG Standard Size, Custom size","Product name":"O-ring","Color":"Customized Color","MOQ":"1000pcs","Packing":"Opp Bag","OEM":"Accept OEM","Hardness":"20~90 Shore","Material":"Rubber","Application":"Industry","Certificate":"CE"}}