Opto-Edu (Beijing) Co., Ltd.100043Why Us (指向 公司信息, 格式不好编辑, 另起一个页面Why Us)F-1501 Wanda Plaza, No.18 Shijingshan Road, Beijing 100043, ChinaOpto-Edu (Beijing) Co., Ltd.100043Why Us (指向 公司信息, 格式不好编辑, 另起一个页面Why Us)F-1501 Wanda Plaza, No.18 Shijingshan Road, Beijing 100043, ChinaOpto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing) Co., Ltd.Opto-Edu (Beijing
--Aluminum Body 1.2m, With Ruler
--Cast Iron Tripod Stand, With Adjusting Screw
--Digital Timer 0~9999ms, Can Use AC/DC Power, With 4 Batteries, Base With Magnet
--Photo Gate 2 pcs, With Indicator
--Top Part With Electrical Magnet, With Lead Weight For Vertical Calibrate
--Steel Ball 5 pcs
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