| fresnellenstaiwan.com | |
| 网站标题： | Thermometer Fresnel Lens, PIR Lens Manufacturer - Selectman Company Limited |
| 网站简介： | Thermometer Fresnel Lens, PIR Lens Manufacturer - Selectman Company Limited |
| 关键字： | PIR Fresnel Lens Mounting on sersor PET Immune Lens Thermopile Lens Ceiling Cover |
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