We are convinced that with joint efforts, the business between us will bring us mutual benefits. We can assure you product quality and competitive price for Vacuum Window, Sapphire Tube , Projection Lens Design , Sapphira Tube ,Borosilicate Rod . Please don't hesitate to contact us if you are interested in our products. We firmly believe our products will make you satisfied. The product will supply to all over the world, such as Europe, America, Australia,Bahrain, India,Sheffield, Indonesia.Our company now has many department, and there have more than 20 employees in our company. We set up sales shop, show room, and product warehouse. In the meantime, we registered our own brand. We've got tightened inspection for quality of product.