... 2)Standard:DIN, SMS, 3A,ISO, AS 3)Shape : round, elliptical,square Sanitary Stainless steel man hole cover with pressure 1 ... ,120,1502)Standard:DIN,SMS,3A,ISO,AS3)Shape:round,elliptical,square 4) TL: arc manhole cover, which can sustain a ... ,320x440mm,350x450mmConnectionNoPressure Height75,100,120,150StandardDIN,3A,SMS,ISO,ASShaperound,elliptical,square