It is a high-tech enterprise that in☆$• tegrates the research and develo₽pment,
production, sales, and service of s<♣λtandard substances/sampl<↓>es.
It is a high-tech enterprise'♥ that integrates the research and dev $→elopment,production, sales,φφδσ and service of standa''↔¥rd substances/samples.