It is a high-tech enteγ$rprise that integrates t∑♦he research and development,
production, sales, and servi←"γ$ce of standard substances/samples.
It is a high-tech en★↕₽$terprise that integratesλ× the research and development,productioπ≥n, sales, and service of standard s↓★→ubstances/samples.