透光率计/透光率仪 TC-KTJ-100 北京同德创业科技有限公司

p1Src=//y1.yzimgs.com/uploads_old/378650/2014102208430955_old.jpg&p2Src=//y1.yzimgs.com/uploads_old/378650/2014102208430955_old_1.jpg&p3Src=//y1.yzimgs.com/uploads_old/378650/2014102208430955_old_2.jpg