stainless steel manhole Materizl:SUS304/316L Suiface finishing:180/240/320/400 grit Sanitary manholes,manhole,manhole coversSanitary manholes1.Type: Pharmaceutical Water Treatmet Equipment2.Material: SUS304, SUS316L3.Standards: SMS, GB, 3A, BS, DIN, BPE, ISO, IDF Application: The covers are widely used in sanitary application fields, such as beer, beverage and dairy products. They not only can ...