The aluminum polyethylene composite pipe is made of 5 layers for water, gas and chemical distribution system. life cycle more than 50 years. Stainless steel flexible tubes are also produced exhaust system in a car. ...

Human beings are starting toadapt with new changes of the earth environment in a climate changebecuase dioxide emissions.Doill Ecotec Co., Ltd. has been coping environmental changesof through research and development continuously, theaccumulation ...