These products of our company have passed ISO9001 quality-system tests. Material of it could beCuCrZr(C18150),CuCr(C18200),CuZr(C15000),CuBeNi(C17150), or CuNi2SiCr(C18000) etc, which depends on different welders or customers' requirements. Detailed size of thesefittings could be adjusted and made according to your requirements.