It is a high-tech ent¥'erprise that integrates the research →♣¶ and development,
production, sales, and service of↕ ★♦ standard substances/samples.
It is a high-tech enter→™↕prise that integrates®¥ the research and development,p•÷™≠roduction, sales, and service of stand®₹ard substances/samples.