It is a high-tech enterprise thaδ↔ ®t integrates the res$♥earch and development,
production, sales, and service of stand↓φ≥★ard substances/samples.Ω↔
It is a high-tech enδ&×terprise that integrates the resea →₩®rch and development,production, s≠φ↓£ales, and service of sta♥∑×"ndard substances/samples.