1BZ trailed heavy-duty Disc Harrow 1,working width:1.8 ... three-point mounted 1BZ trailed heavy-duty Disc HarrowThis series of 1BZ hydraulic trailed offset heavy-duty disc harrow is mainly ... , reasonable utilization of the power, great ability of cutting and shattering the soil , the soil surface is ... loosening after harrowing, it is well suitable for heavy clay soil, waste land and weedy field as well ...