BK7 25.4*25.4*5 Squre Optical Windows,polished quartz glass square plates

 Specifications   1. Size: big or small,thick or thin;
2. Shape: Round, square, rectangle;
3. For window use.
4. Heat resistant:1100degree   Application: Used for window material,mask substrate or heat insulation,optics,electronics,medical treatment,laser industries ect.      Characteristics and superiority  1, Shape:Round, square, rectangle; 2,  Material :  BK7, H-K9L ,UV fused silica,Corning7980, etc 3, Customer’s design and tailor made are welcome.  Big or small, the max size we did before was 2000mm;  thick or thin, Thin or thick, from 1-400mm; 4, Dimension tolerance: +/-0.01 -  +/-0.2mm( according to the requirement) 5,Future Processing: such as holes are available. Smallest hole is od0.5mm. 6, Surface quality :40/20   60/40   80/50 7, Transmittance  >85% 8, Coating: high anti-UV film, antireflective film, gold, aluminum, silver series quartz glass  and quartz UV filters, curved reflector, filter glass and so on.     Product Introductions:   Quartz glass can transmit far ultraviolet, transmit visible light and near infrared optical curve.  It is characterized by small heat expansion factor, stable chemical capacity. Bubble, stripe and double refraction are better than common optical glass.   Quarts glass is necessary optical glass to stable optical factor in bad condition. Mainly apply in military, laser, metallurgical, optical instrument and stage light etc. high temperature window.             There  are other products supplied.             our production engineering :           Overseas exhibition :     Our company :       FAQ Q1: Are you a factory or trading company ?  A: We are a factory.We have been in optics field for 10 years Q2: Where is your factory located ? How can i visit there ?  A:It is located in North-South 1st Road ,xiangguang Economic Development Zone,Yanggu county,Shandong Province,China Welcome to visit our factory anytime Q3: Can I customize the products based on my need? A: Yes, we can customize the material, specifications and optical coating for your optical components based on your needs. Q4: What's your MOQ? A:    <![if !supportLists]>(1) <![endif]> For inventory, the MOQ is 1pcs.
(2)  For customized products, the MOQ is 10pcs-20pcs. Q5: Can i get the sample to test before the mass production ?   Sure ,we would like to offer the sample for you to test our quality before large order   Q6: How to pay? A:   T/T, Paypal, Western Union, Secure payment, Credit card and Assurance payment on Alibaba and etc.. Q7: What's the delivery time? A:   For inventory: the delivery is 3 workdays after you place the order.
 For customized products: the delivery is 2 or 4 workweeks after you place the order. Q8: How to ensure the safety of payment? A:   Hengjing is the gold supplier of aibaba for more than 4 years and supports Alibaba Trade Assurance. We value our reputation in this field