BONA 90HP Tractor: ISO9001; High transmission efficiency; Low tremble; High traction; ... start. BN900/904 TractorModel: BN900/904Features of BN900/904 Tractor:1. BN900/904 tractors are 90hp tractors, specially used ... , mower, backhoe, plough, harrow, etc.6. This series tractor can have many different configurations according to customer’s demands ... way valveLifting capacity(KN): >15 >16 BONA 90HP Tractor