toilet leaking from tank to bowl

{"cid":"91202615","title":"IAPMO CUPC Toilet Bowl 1 Piece Super Quiet Commode Powerful Flushing Round","imgUrl":"https:\/\/img.chinax.com\/nimg\/af\/57\/135cced561583187ff3d64d1b43e-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"OVS","Model Number":"2184-CUPC-White","Minimum Order Quantity":"Negotiation","Delivery Time":"15 days","Certification":"CUPC","Place of Origin":"China","Payment Terms":"L\/C, D\/P, T\/T, D\/A","Supply Ability":"5000 pcs\/month","Packaging Details":"Standard export carton packing","Product name":"Super Quiet Commode & Powerful Flushing Round Bowl Toilet Dimensions","Color":"White color","Flushing system":"Siphon Flushing ceramic toilet","Advantage":"Easy installation","Seat cover":"Soft Closing Cover Seat","Installation type":"Floor Mounted","Flush button":"Side flush button","Material":"Ceramic\/porcelain","Drainage pattern":"S-Trap","Toilet bowl shape":"Elongated"}}

{"cid":"91186512","title":"Auxiliary Flushing Toilet Inlet Valve \/ Toilet Cistern Dual Flush Valve Wall Drainage","imgUrl":"https:\/\/img.chinax.com\/nimg\/3d\/ba\/92c51028aa86d732bf62c1049870-200x200-1.jpg","attrs":{"Price":"Can discuss","Brand Name":"San-Tide","Model Number":"S-405-1","Minimum Order Quantity":"Can discuss","Delivery Time":"15-30 days","Place of Origin":"CHINA XIAMEN","Payment Terms":"MoneyGram, T\/T, L\/C","Supply Ability":"unlimited","Packaging Details":"Packaging according to customer requirements.","Usage":"Manual installation","Specifications":"optional","Material":"ABS","Cross-border sources":"no","Product type":"Cistern fittings","Processing mode":"LOGO branded","Function":"Auxiliary flushing","Color":"white","Drainage pattern":"Wall drainage","Features":"Water saving"}}