NINGBO BOSEN GAS SAFETY& TECHNOLOGY CO.,LTD.is a high-tech corporation which is dedicated to supplying security products domestically and internationally. Our product line includes gas detectors, valve controllers, smoke detectors.etc. They can be applied in many fields, such as apartments,family in home use, factories, hotel,office , banks, and warehouses. All of our superior products have ce complusory certificates and other necessary certificates as well. As professionals in this field for many years, we mange our company strictly according to the ISO 9002 international standard and enjoy a good reputation for excellent quality, competitive pricing, punctual delivery, and in-time after-sales services. In addition, we offer a flexible cooperation partnership in the way of OEM and ODM standard products. We aim to offer our customers the best products with the most competitive prices all the time! For a safe life, World Security is your professional choice!