... 1,Name: Carbon steel end core with rohs zinc plated ;Carbon steel end core;End core ... with rohs zinc plated2,For the similar end core,what ... ,1020,1045,etcAlloy steel4130,4140,G51150,etcStainless steel201,202,301,302,303,304,316,310,430,etcBrassC28000, ... colour,dacroment),Nickel plated,copper plated,gold plated,chrome(3+Rohs &6+ ) plated,anodic oxidation,etc Dip plating ...