... ,5SUMITOMO S280FJ BulldozerTY320,D155,D85,T140-1 KobelcoSK07,SK200 machinery: Mechanical seal machinery are used in construction machinery and mining machinery , the ... lifetime is more than 3000HRS. My factory can produce floating seal according GNL,GOETZE,KOMATSU.But if you have your own ... . Various loaders and land levelers, cranes, mixers, mining machines, etc. mechanical seal for machinery