Offer Details: We are a specialized manufacturer of all kinds of quality detectors, especially LPG or LNG detector with electrical ball valve and Passive carbon monoxide Co detector, currently we are only a manufacturer for providing them in China. More importantly is that our price is favorable and competitive. We are sure that you can enjoy a good service and a better financial increasing. Our most products have obtained CE approval. too. Our alarm series of product including: 1. LPG detector, LPG detec |