Shanghai grace crown Intelligent Technology Co., Ltd.   

Shenzhen City Saifu Electronic Technology Development Co., Ltd. is a set of anti-theft alarm peripheral equipment R & D, production, sales as one of the enterprises, since the establishment of the company with good products and good business reputation fast delivery, customer satisfaction with the product after-sales service, won the vast number of dealers, the project's consistent approval. Now the company has 200000 production capacity, product quality from raw materials into the factory everywhere, advanced testing equipment and aging test equipment to make the product to solve the user's trouble Company main products: 1, door and window control switch, emergency button 2,...