比表面测定仪 BSD-A
贝士德仪器科技(北京)有限公司
p1Src=//y1.yzimgs.com/uploads_old/312087/2008062409010468_Old.jpg&p2Src=//y1.yzimgs.com/uploads_old/312087/2008062409010468_old_1.jpg&p3Src=//y1.yzimgs.com/uploads_old/312087/2008062409010468_old_2.jpg