1. Circular inner box, stainless steel circular test inner box structure, in compliance with industrial safety container standards, designed to prevent condensation and dripping during testing.

2. Circular lining, stainless steel circular lining design, can avoid direct impact of steam latent heat on the test sample.

3. Patent type packing, when the pressure inside the box increases, there will be back pressure on the packing, which will make it more tightly integrated with the box, completely different from traditional extrusion type, and can extend the packing life.

4. The vacuum action before the experiment can extract the air from the original box and suck it into the new air (partial<1micorn) filtered by the filter core. To ensure the purity inside the box.

5. The critical point limit method automatically provides safety protection, and the abnormal cause and fault indicator light are displayed.