S4A Industrial Co.,Limited is a Global Automatic Opener & Access Control Solutions company in Shenzhen, China.Your business is a plant, we are the gardener, our mission is to water and fertilize the plant, and make it become the towering tree. S4A is established in 2006, we focus on manufacturer access control products for OEM&ODM and project solution.With a branch office in Qatar, and sole agent in Singapore, Malaysia, The Democratic Republic of the Congo, South Korea, and Egypt. S4A's products circulate around the world.We attach great importance to partner's appeal, customer's suggestions, and feedbacks. To strengthen Product quality awareness, client's service awareness. Our clients and S4A are on the same path walking for many years. So 85% of our business comes from cooperated customers. S4A's future would be even more brilliant, this is related to all of our staff's working sweat. When you join this team, you will feel an invisible power to drive walk forward. Join us, become our overseas partner. we could create brilliance togetherAll items listed we guarantee 2 year quality guarantee.also welcome to visit our office and discuss it face to face.Also we accept OEM&ODM order with branded or unbranded. just depend on your suggestion.We will show you how to use hardware and software.also if available we could pick up you in the airport...Warmly welcome to call or email back to us at anytime.Tel:+86 755 21500963Mob:+ 86 130 4080 0588Greetings from S4A teams!