The pass trolleys manufactured by PHAMM are made of TIG welded AISI 304 satin scotch brite stainless steel monobloc. The doors are interlocked to prevent the simultaneous opening of the two doors and the status is visible through appropriate visual indicators. The inside of the PC is rounded at all corners to prevent dust accumulation, and the surface is polished to increase the degree of internal cleanliness. All joints are welded and brushed to avoid protrusions. PHAMM's great production flexibility makes possible to create non-standard models according to customer specifications.