玻璃透射比测定仪 型号：SGT-3 SGT-3 北京同德创业科技有限公司

p1Src=//y3.yzimgs.com/uploads/378650/2016119-145719637.jpg&p2Src=//y3.yzimgs.com/uploads/378650/2016119-145724740.jpg&p3Src=//y3.yzimgs.com/uploads/378650/2016119-145728620.jpg