We keep improving and perfecting our products and service. At the same time, we work actively to do research and development for coupler of air conditioning lineset covers, Insulated Flexible Air Ducting, Fire-Resistant Acoustic Insulated Aluminum Air Vent Ducting, Dryer Ventilation Pipe,Acoustic Aluminum Dryer Air Duct. We warmly welcome your participation based on mutual benefits in the near future. The product will supply to all over the world, such as Europe, America, Australia,Puerto Rico, Kazakhstan,The Swiss, Mali.More than 26 years, Professional companies from all over the world take us as their long-term and stable partners. We are keeping durable business relationship with more than 200 wholesalers in Japan, Korea, USA, UK, Germany, Canada, France, Italian, Poland, South Africa, Ghana, Nigeria etc.