model: 1bz-3.0 no. of discs: 28 dia. of discs: 660mm material: 65Mn matched tractor:min.100hp shandong juwei machinery co., ltd, founded in 2000, based in qihe economic development zone, dezhou city, shandong province. we are professional manufacturer of farm machinery including : rotary cultivator, disc plough , disc harrow, farm trailers. with our quality products and good service, our products ...