Sun-tech intelligence Co. Ltd. Situated in Zhuhai, China is a joint venture with 15million HKD registered capital.The garden-style factory, covering an area of 22, 000 mm, allows our 500 employees to work in a comfortable environment. With its 15 years professional R&D and manufacturing experience in access control products, Sun-tech haf products from DIY villa system to building network type system, as developed a wide range ond sold its products to over 50 products and regions.