It is a high-tech enterprise ₩₩£$that integrates the research and∞ ∞ development,
production, sales, and s¥≠≈ervice of standard substances∑ /samples.
It is a high-tech enterprise≠×ελ that integrates the resear¶♥ch and development,product≤♦♣ion, sales, and servic$∞εe of standard substances/samples.