S4a Industrial Co.,limited

4a is a manufacturer for electromagnetic locks, access control, uhf rfid reader, biometric access control, etc in shenzhen, china since 2006, 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 inv