We are a joint-venture called Toptics Hang Zhou Inc. which were founded in 2000 and is now located in Hang Zhou Hi-Tech industry development zone. We can supply products and service for optics and laser field.As the technology and quality of our products are becoming more and more perfect, they are widely used all over the world in precision optical industry,optical measurement instrument and flow line for ophthalmic industry.We will sent our specialist to adjust and train your men until your machines are ready to work.