Isuzu giga sobida reconditioned surplus 4x2 6-wheeler tractor heas bb 88 series in Philippines Isuzu giga sobida reconditioned surplus 4x2 6-wheeler tractor heas bb 88 series in Philippines Isuzu giga sobida reconditioned surplus 4x2 6-wheeler tractor heas bb 88 series in Philippines Isuzu giga sobida reconditioned surplus 4x2 6-wheeler tractor heas bb 88 series in Philippines