ItemsUnitNominal diameter(mm) 250-400 Specific resistance (not over)Electrode nipple¦ì¦¸.M6.24.8 Bending strength (not below)Electrode nippleMpa10.0 15.0 Elastic modulus (not over)Electrode nippleGpa12.0 16.0 Bulk density (not below)Electrode nippleG/cm31.65 1.75 Cte(100-600)0c (not over)Electrode nipple10-6/0c2.4 2.2 Ash(not over)Electrodenipple%0.30.3 Wood packaging