... CuBeNi, CuNi2SiCr. has passed the authentication of ISO9001 and ISO5182. welding material:1. contains CuCrZr(C18150),CuCr(C18200),CuZr(C15000),CuBeNi ... ),CuNi2SiCr(C18000)2. specification can be Rod, Bar, Flat, Disc3. with high hardness and conductivityWe have a history of more than 27years ... have been exported to many countries all over the world. welding material with high hardness and conductivity