1BZ trailed heavy-duty Disc Harrow 1,working width:1.8-5.3m 2, ... Standard three-point mounted 1BZ trailed heavy-duty Disc HarrowThis series of 1BZ hydraulic trailed offset heavy-duty disc harrow is mainly applicable to ... smooth and loosening after harrowing, it is well suitable for heavy clay soil, waste land and weedy field as well. Having ...