1. Density of rod guide: f¦6.7g/cm3, 2. Specification ¬)45.8*¬)23*31.5 mm 3. Hardness: 60-70hb 4. Efficient steam treatment 5. High precision. 1.200pcs per carton 2.Carton size:33.5cm*26.5cm*14.5cm 3.Gross weight: 20.5kg/carton 4.Net weight: 20kg/carton.