OSA Engineering Works Company

RTH Oil Gas Fired Vertical Thermal Oil Heater Model RTH 600 ROSS

OMEGA Oil Gas Fired Tubeless 4 Pass Steam Boiler Model OMEGA 300 ROSS

ASTRA Oil Gas Fired 3 Pass Reverse Flue Shell Type Hot Water Generator Model ASTRA 800 ROSS

RHB Oil Fired Two Pass Shell Type Vertical Hot Water Generator Model RHB 30 ROSS

DELTA 4 Pass Solid Fuel Fired Thermic Fluid Heater Model DELTA 4000 ROSS

DELTA 4 Pass Solid Fuel Fired Thermic Fluid Heater Model DELTA 3500 ROSS

DELTA 4 Pass Solid Fuel Fired Thermic Fluid Heater Model DELTA 3000 ROSS

DELTA 4 Pass Solid Fuel Fired Thermic Fluid Heater Model DELTA 2500 ROSS