nbr90 hydraulic cylinder back up ring

{"cid":"91225490","title":"G-OK-0022 42ITs 626pcs NBR90 O-Ring Kit HBGLAND Excavator Hydraulic Seal Repair Box","imgUrl":"https:\/\/img.chinax.com\/nimg\/20\/04\/1e642ba82937b6d035fd8eb7de08-200x200-1.jpg","attrs":{"Price":"$2-38","Model Number":"G-OK-0022","Minimum Order Quantity":"1","Delivery Time":"3-7 Works day","Application":"Hydraulic pump valve cylinder pipeline sealing, excavator daily overhaul maintenance","Certification":"CE\uff0cISO9001","Size":"Original Standard Size","Gross Weight":"1.2KG","Packaging Details":"Neutral export carton","Function":"Daily Maintenance Direct Replacement","Supply Ability":"50000\/Years","Fit Models":"Hitachi EX60 EX100 EX120 EX200 EX300; CAT 307 312 320 330 345; General 10-30 ton construction machinery","Place of Origin":"China","Product Name":"HBGLAND 42ITs 626pcs Excavator Hydraulic O-Ring Repair Kit","Feature":"42 full sizes complete matching; oil wear high temperature resistant; printed size chart fast identification; dustproof moisture-proof reusable case; factory direct supply stable stock","Payment Terms":"T\/T","Package Size":"22*16*6 cm","HS Code":"40169390","Material":"NBR Nitrile Rubber, 90 Shore Hardness","Warranty":"3 Months"}}