It is a high-tech enterprise that int₹★egrates the research and developme ∞nt,
production, sales, and ser$Ωvice of standard substances/™≠σ♠samples.
It is a high-tech enterpris♥↔&σe that integrates the resea↑αγ¥rch and development,produ≈<ction, sales, and service of stan₽Ω dard substances/sample≈×←s.