Shenzhen Longyuan Lock Industry Co., Ltd.
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Company: Shenzhen Longyuan Lock Industry Co., Ltd. Contact: Ouyang Fa 13534005361

Contact: Jiang Jie 13632655852

Contact: 阮会普13631694748
Fixed line: 0755-33868508
Email: 758047836@qq.com
Website: www.szlysysy.com
Factory Address: No. 317, Huaying Road, Dalang Street, Longhua New District, Shenzhen

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Letter box lock can be customized using DC voltage regulator 12V-24V power supply

Edit:Shenzhen Longyuan Lock Industry Co., Ltd.UpDate:2019-04-28


The letter box lock is 500mm away from the normal light source. The visual surface is complete and clean. The color of the paint layer is uniform. There are no obvious defects such as flow marks, chromatic aberration, scratches, blistering, corrosion, rust and turbidity. ≤ 5mm , the area of the film should be ≤ 3m m2 for scratching, the area of the film should be 10m m2 and the length is 15mm , and the surface of the finished wire is not obviously scratched.