... )Standard:SMS,DIN,3A 4)ISO9001:2000 sanitary stainless steel tank cover sanitary stainless steel tank cover1)Material:SS304,304L,316,316L2)Size:applied to ... the stainless steel pipeline system3)ISO9001:20004)Standard:SMS,DIN, ... grade valves, pipe fittings and liquid equipment. sanitary stainless steel tank cover