what is battery explosion proof test box?

Equipment overview:
The battery explosion proof test box for battery overcharge and over discharge the battery to prevent battery explosion or burning on unnecessary testing personnel injury, whole body with steel material, texture strong explosion effect.

Main Technical Parameter:

Inner box material 304 stainless steel (2mm thickness)
Inner box capacity W50*H50*D50(CM)
Outer box material Cold plate temperature toast paint (2mm thickness)
Sealing material rubber strip
Test rite 2 pieces (open on the left side of the cabinet,diameter 50mm)
Viewing window 1 piece (Double thick explosion-proof glass+Lighting lamp;Viewing Window Size:L*W 300*300mm
Air outlet 1 piece , diameter 15cm of ventilator (open on top of the cabinet rear)
Pressure relief valve 1 piece Automatic pressure relief valve is installed in the cabinet rear
Foot roll 1 set  Easy mobility
Explosion-proof door lock 1 piece
Shelf 1 piece