... 3)Shape : round, elliptical,square Sanitary Stainless steel man hole cover with pressure 1)Height ... -l: arc manhole cover, with high bracket, used big vessels with lagging materials.6 ... cover, with low bracket.7) TL: flat manhole cover ,with high bracket, used big ... , 350x450mm9) Material : 304 , 316LNameStainless Steel Sanitary Tank Manhole coverNo.SHSD-MC01Material304,306LSize410x510mm,320x440mm ...