Global Interlok Inc. dba. SDH Hardware

Shandong Double-Hill Electronic Lock Company was founded in 1986 selling low cost locks and was certified ISO9002 in 1999. Today, Double-Hill manufactures solid brass door hardware, marketing a complete line of high-end decorative hardware, which includes handle sets, knobs, levers and dead bolts for residential and light commercial applications. Electronic handle sets round out the line for the high quality hotel/motel industry. Double-Hill is the top selling hardware company in China. Door hardware is the first thing that visitors touch and feel when entering your home. Double-Hill entry door hardware set the tone for the rest of the house. With SDH Hardware, you get the security you need without the sacrifice of style or functionality. SDH Hardware offers a wide variety of styles and finishes at a great value