Ningbo Aosite Si trade limited company   

                                  Ningbo OST Si trade limited company is located in Zhejiang city of Ningbo province Ningbo World Trade Center, is a collection research and development, production, sales and service as one of the enterprises companies adhering to the "honest and trustworthy, with people," and the management principle, adhere to the "principle of dedication win-win cooperation" for the domestic and international customer service, create brilliance. Welcome all the friends come to visit, investigate and negotiate business.