Jinyibo is accredited Certified Reference Material (CRM) producer in China for solid metals. We offer a wide range of Certified Reference Materials and Setting- up Samples (SUS) for spectrometers, including those that are typically considered difficult to make, such as Cast Iron, S.G. Iron and Aluminium Standards. We assure the highest quality across various grades of Ferrous and non- Ferrous Alloy Standards in solid form. Metal Samples are manufactured using advanced techniques for achieving homogeneity. At the same time we also sell other brand CRMs (BAS, MBH ANALYTICAL LTD., ENGLAND , BREITLANDER GMBH, GERMANY NIST, SRM, SCRM,NCS)from Germany, the USA ,England and so on.