welding material contains CuCrZr, CuCr,CuZr, CuBeNi, CuNi2SiCr has passed the authentication of ISO9001 and ISO5182. welding material:1. contains CuCr(C18200),CuZr ... factory for electrode alloy with a history of more tna 27 years.The quality and service of our goods are very good welding ...