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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