It is a high-tech en ®®¥terprise that integrate$∑s the research and dev€≥&≥elopment,
production, sales, and s↔Ωervice of standard substances/sampδ→¶les.
It is a high-tech enterpr₽α♣•ise that integrates the ∏÷$research and developmen₽α $t,production, sales, and service≠♠→ of standard substances/samples.