With this motto in mind, we've come to be one of quite possibly the most technologically innovative, cost-efficient, and price-competitive manufacturers for Medical breathing filters, Ch4 Gas Sensor , Combustible Gas Monitor , Hydrogen Gas Sensor ,Porous Metal . Our Lab now is "National Lab of diesel engine turbo technology " , and we own a professional R&D team and complete testing facility. The product will supply to all over the world, such as Europe, America, Australia,Costa Rica , Lebanon ,Poland , New Zealand .During in 11 years, We've participated in more than 20 exhibitions, obtains the highest praise from each customer. Our company has been devoting that "customer first" and committed to helping customers expand their business, so that they become the Big Boss !