ShenZhen Sintronic Technology Company Limited are the logistics and development center of a group of 2 factories and 8 manufacturing departments established in the year of 1999 and providing high quality production services of access and security solutions in china and we are able to provide technical assistance during any stage of your product development, helping to turn your idea into a commercial product by with our 23 years over experience in the manufacturing industry which we can bring to the table a wide range of capabilities, including: Design Optimization & Value Engineering,Material Selection,Responsive Customer Service ,Quality manufacturing with timely delivery Engineering,however,...