It is a high-tech enterprise that integφ↓εrates the research and developσ↕₹→ment,
production, sales, and seσ¶ rvice of standard substances/samp£★>les.
It is a high-tech enterprise that inte÷πδ♦grates the research an↕"≤d development,production, salβ®>es, and service of standard substa₽↔nces/samples.