It is a high-tech enterprise thaλ∞"πt integrates the research and develo≠☆πpment,
production, sales, and se$&>rvice of standard substances/sample↓≤δs.
It is a high-tech enterprise that i♦<£±ntegrates the research↔α• and development,produ∞$ction, sales, and service o∞f standard substances/s$↔> amples.