It is adopted the stainless steel inside, witch is flat,neat,wearable,the surface meaterical of pass box is cold rolled steel or stainless steel.
Door in two side with machinery or electronic inter lock device makes two door can't be in the open state at the same time.3 pass box with special seal strip guarantee the air proof.
The above pass box is a standard type, according to the custmer's requirement, we can make different size and different function.

Such as:
1 electronic interlock pass box with two door
2 machinery interlock pass box with single door
3 electronic interlock pass box with single door
4 moveable pass box
5 pass box with sterilization
6 pass box with ozone sterilization
7 pass box with interphone and so on