News

  • Ningbo Sedulous teaches you how to choose the right lock

    07-07-2020

    Foreign countries have very strict standards for hardware locks, so the quality of imported products is relatively high. We can feel the good or bad of our locks. In general, the feeling of heavy lock...

  • Basic knowledge about locks

    22-05-2018

    The lock is not only a durable product, but also a very professional product. How to select, install and maintain has certain difficulties for end customers; especially for users who have used a certa...

  • Why did you choose Sedulous's products?

    22-05-2018

    Founded in 1995, Ningbo Tongyi Metal Products Co., Ltd. is a large-scale enterprise integrating product development, design, production, and sales. It specializes in door lock handles, hardware access...