model: 1bz-3.0 no. of discs: 28 dia. of discs: 660mm material: 65Mn matched tractor:min.100hp shandong ... city, shandong province. we are professional manufacturer of farm machinery including : rotary cultivator, disc plough , disc harrow, farm trailers. with our quality products ... products have exported to many countries, rank the top supplier of china . our products show as below, welcome to start ...