比表面和孔容分析仪 BSD-PS 贝士德仪器科技（北京）有限公司

p1Src=//y2.yzimgs.com/uploads/312087/2018828-142751163.jpg?watermark/2/text/6LSd5aOr5b635Luq5Zmo56eR5oqA77yI5YyX5Lqs77yJ5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/700/fill/I0E3QTlBOA==/gravity/SouthEast