HI ! I am Ma Lanzhen, you can call me Tony. At first I'll introduce my company,our company establishied in 2003,specializing in agricultural machine manufacture,our technical manager has 30 years experience, we can follow your drawing make your products.And we have self-suppted import and export right,has passed ISO9001:2000 andOEMquality management certification. FOLLOWING SPECIFICATIONS: TYPE NAME WORKING DEPTH(mm)max WORKING WIDTH(m) MATCHED POWE(hp) WEIGHT 1BZ-2.2 20 blades hydraulic heavy harrow 200 2.2 80 1300 kg 2865 pound 1BZ-2.5 24 blades Hydraulic heavy harrow 200 2.5 80 1500 kg 3307 pound 1BZ-3.0 28 blades Hydraulic heavy harrow 200 3.0 100 1600 kg 3527 pound 1BZ-3.4 32 blades Hydraulic heavy harrow 200 3.4 120 1500 kg 3307 pound 1BZD-2.8 28 blades Contraposition heavy harrow 200 2.8 100 1600 kg 3527 pound 1BZD-3.4 36 blades Contraposition heavy harrow 200 3.4 100 2300 kg 5070 pound 1BZD-4.7 42 blades Contraposition heavy harrow 200 4.7 120 2800 kg 6167pound packaging type