ps 500a top drive roller assembly

{"cid":"91222869","title":"Roller Assembly PN 2028099 Lateral Spring For National PS-500A Top Drive","imgUrl":"https:\/\/img.chinax.com\/nimg\/2e\/b2\/2775a75ec8c10e7b6ff8b126dbe9-200x200-1.jpg","attrs":{"Price":"NEGOTIABLE","Brand Name":"TOPLAND","Model Number":"2028099","Minimum Order Quantity":"1","Delivery Time":"5-8 DAYS","Certification":"API","Place of Origin":"CHINA","Payment Terms":"T\/T,Western Union","Supply Ability":"1000 SET\/Month","Packaging Details":"Wooden Carton","Material":"Stainless Steel","Customization":"Acceptable","Operation Pressure":"Atmospheric Pressure","Transport Package":"Carton\/Wooden Box","Application":"Drilling","Condition":"New"}}