National Standard Material Sample Information Networkwww.gbw600.cnBelonging to Beijing Boyan Kechuang Biotechnology Co., Ltd. We mainly sell domestic standard materials, imported standard products, pharmacopoeia standard products, as well as various stable isotope standard products. The website includes various reference materials and standard samples (*, secondary reference materials) from both domestic and international sources; Pesticide and veterinary drugs, environmental standard materials and quality control samples, various gold ore and soil standard samples, coal samples, metal standard solutions, food testing, filter standard materials, particulate standard materials, occupational health quality control samples, imported standard products, etc. Imported standard products include the following brands: NIST standard products in the United States, NRC standard products in Canada IAEA Stable Isotope Standard, US Geological USGS Standard, Japan JCCRM (ReCCS) Standard, UK NIBSC Standard, WHO National Health Organization, UTAK Standard/Quality Control Sample, Japan NMIJ Standard, EU BCR/IRMM/ERM Standard, Germany DR Standard, US USP Pharmacopoeia Standard, Germany Witega Standard, Canada TRC Standard, US NU-CHEK Fatty Acid Standard, US Cambridge CIL Isotope Standard, Canada CDN Isotope Standard, US O2si Standard, US Ceriliant Standard, UK LGC Standard, European EP Pharmacopoeia, US Sigma/Supelco Standard, US ChromaDex Standard, Accustandard standards from the United States, ChemService standards from the United States, MedicalIsotope isotope standards from the United States, and Isosciences isotope standards from the United States. The information covers standard substances and standards from China, the United States, Japan, the United Kingdom, Germany, Canada, the European Union, and other countries. At the same time, the website's data is constantly being updated and updated. The industry involves multiple fields such as chemical engineering, metallurgy, scientific research, pharmaceuticals, food, health, environment, agriculture, energy, etc. The National Standard Material Sample Information Network is dedicated to providing high-quality, high-quality, and excellent information and standard material service functions for domestic and foreign customers. The company provides customized standard solution services: directional preparation services for single and mixed standards of various metal solutions with different concentrations, and issuing certificates. Welcome to the company website:www.gbw600.cnOr call 010-56125828, 56125829, 13552204976 WeChat Sync, 15117969927 WeChat Sync, 18310185196 WeChat Sync. Email:gbw600@163.comConduct consultation and procurement. Based on the principles of standards, quality, service, and reputation, we provide our customers with an easy and convenient online procurement model. All staff members of the company sincerely welcome strong support and cooperation from domestic and foreign customers.