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              This page shows the standard optical and  crystal products that our company produces all year round, customers can  quickly find the products you need by product type and simple specifications, Because  it is mass production, the price is relatively cheaper to customize.  | 
             
            
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              After you have selected the products, you  only need to inform our sales engineers of the model and quantity. We will  calculate the shipping cost by weight and quote it to you. After you confirm  the order, we can ship the goods immediately.  | 
             
           
          
          
          
          
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