A.Using advanced vacuum with tail and vacuum without tail technology to make the air in double layer come into vacuum state forming isolation layer. It takes 20-30 mins to extract air by vacuum with tail, while vacuum without tail may take 4-6 hours.

B. Currently, the widely used technique for inner container is inner electrolysis technique and inner polishing technique, which can wipe off the inside impurities effectly, making it easy to clean.

C. The outer surface of inner container usually adopts advanced copper plating and silver plating technique.Because heat resistance of copper is strong, it can strengthen thermal preservation. However, silver has good anti-radiation function to gather heat in cup, as if to add a thermal preservation layer on the surface of cup, and the thermal preservation effect can improve by 5-8 times.

D. Process cup body and surface
(1)The modeling process usually use stretch technique;
(2)cup surface processing: surface of stainless steel cups in the market are mostly in its original color or spray lacquer, which is widely us ed. Leading brands like Thermos Nissan, Tiger, ZOJIRUSHI also adopt the above two techniques. In recent years, some brands in Guangdong begin to conduct Chinese characteristcs surface innovation, such as: imitation leather, electroplating, gold plating, forming the new style vacuum cups.