Suntech could provide high vacuum brazing services and products for ceramic-metal and glass-metal combinations. The ceramics used include materials such as alumina, zirconia, aluminum nitride, silicon nitride, and silicon carbide, while the metals used include Kovar alloy, titanium and titanium alloy, aluminum and aluminum alloy, stainless steel, carbon steel and low alloy steel, high-temperature alloy, etc. The ceramic surface can be brazed by either Mo-Mn metallization or non-metallization active brazing, and the airtightness of the product's brazed joint can reach 1*10 Pa.m /s . After brazing, the workpiece is strictly cleaned, and the product has a uniform color, no pollution, cracks, or scratches. Airtightness: ≤1*10 Pa.m /s Appearance: uniform in color, free of pollution, cracks, and scratches. Fields of application: machinery, instruments, motors, aerospace, and national defense.