It is a high-tech enterprise that int✘β"≠egrates the research ε ↓λand development,
production, sales, and ser₹✔vice of standard sub≤☆$±stances/samples.
It is a high-tech en ↕∑±terprise that integrates the researcφφ<φh and development,production, sales, a×↕♦∏nd service of standard s≥÷ubstances/samples.