Semicorex has been producing seal ring;sealing application;tac coat;tantalum carbide;tantalum carbide coating;o ring for vacuum sealing;high vacuum o rings;gas seal;semiconductor manufacturing;wafer processing; for many years and is one of the professional seal ring;sealing application;tac coat;tantalum carbide;tantalum carbide coating;o ring for vacuum sealing;high vacuum o rings;gas seal;semiconductor manufacturing;wafer processing; manufacturers and Suppliers in China. Once you buy our advanced and durable products which supply bulk packing, we guarantee the large quantity in quick delivery. Over the years, we have provided customers with customized service. Customers are satisfied with our products and excellent service. We sincerely look forward to becoming your reliable long-term business partner! Welcome to buy products from our factory.