Linyi Ruili Hardware Co., Ltd. Is established by the executives and the core technicians of Shandong Double Hill Electronic Lock Co.,Ltd. Which is one of the "China's top 10 locks King".
        Company is located in the Economic Development Zone of Linyi city in Shandong Province, is a collection of scientific research, development, production, sales as one of high-grade hardware manufacturing enterprise.  
        The company is existing 25senior technical staff and more than 200 employees, with an annual output ......  >>more