It is a high-tech en<terprise that integrΩ×✘↑ates the research and developmen✘≤λ&t,
production, sales, and serv↕♥ice of standard substances/samples.
It is a high-tech enterprise that int↕★≈egrates the research <× and development,production, sales, and¶↕≠ service of standard substan®₹'ces/samples.