... cover 4mmPressure: -0.1 to 1 MpaMaterial: SS304 or ss316LApplication: beverage, food, diary, beer, water industryThis ... the pathways to the inner patrs of the tanks or vessels can be locked up.YAC:arc manhole ... cover,has higher bracket,suitable for big vessels with lagging material.YAC:flat manhole cover, ... manhole over,,higher bracket,suitable for big vessels with lagging material.YAC-P:can sustain ...