Application:dairy,food,beverage,beer,pharmacy manhole(sanitary square manhole cover , manhole cover) manhole(sanitary square manhole cover , manhole cover) Application :dairy , food , chemical , ... top of the vessel ,tank etc.Type: square,circular, elliptical, handhole coverMaterial :AISI304 , AISI316LFineness ... valves , pipe fitting ,tubes , manhole covers ,pumps , etc for many years . We can design ...