1.Name: BLS  stainless steel round manhole cover 

2. material:  SS304; SS316; AISI304 , AISI316L 
3. Surface: polished inside outside

4. Type: square,circular, elliptical, handhole cover

5. Application: dairy, food , chemical ,beverage ,pharmaceuticals ,water treatment ,beer etc .

                                   It is used as cap on the top of the vessel ,tank etc.

6. Fineness:  inner and outer fineness of mirror Ra≤0.8μm;