Specification: 30 x 4 x 11.8 mm . Density of valve seat: more than 6.5 g/cm3 . Hardness: 60-70 hb . Efficient steam treatment . Low friction. 900pcs per carton . Carton size: 27.5 x 22.5 x 18.5 . Gross weight: 24.5 kg . Net weight: 24 kg . Packing dozens of cartons per pallet . 7-9 pallets per container.
