wafter-九游会ag

wafter-type butterfly valves have nominal diameter of dn40-dn1000 and working temperature covering -35°c-35°c for water, sewage, oil, acid and alkalis. lug-type butterfly valves have nominal diameter of dn40-dn300 and working temperature covering -45°c-50°c for water, sewage, oil and acid. models fabricated at ansi, din, bs, jis, as and iso standards.