Stainless steel made,durable used;
Bakelite star type screw rod, when operation not scald one's hand;
Electric heating and gas heating can be choosed;
Use prevent-dryout heating tuber, can stop heating when dryout;
Press meter can display container pressure and temperature, easy visual;
Safety value can control the pressure and sterilized temperature, safety and reliable;
Exhaust value can exhaust the cool air and condensed water;
Radial bulging configuration, easy operation;
The airproof ring made of silicon rubber is not only durable but also with better result.