*chain breaker *10years' manufacture *carbon steel.special coating *high HRC,superior apperance and longrvity *hot forged product detailMaterial : carbon steel ,special materialSurface finish:phosphating ,chrome plated,electrophoresis black,zincProcess : heat treatment ,drop forgedSize : Fine ,big Package detailinner color box ,1pcs in each box,200 pcs in each cartoncarton size : 0.34*0.27*0. ...