Sanitary manhole cover without pressure grade:sus304,sus316L Exporting country:North America&Middle East& ... the large jar and container.Application:the pressure type manhole is mainly used for pressure vessel in the fields of food,beverage,chemical ... surface:polishing finished,sub-light finished,sand-blasting finished.Max pressure:5.0barGaskets:EPDM,NBR,Silicone,FPMIN accordance with FDA177.1600Height ...