... ,,IDF,3A,RJT 1000/week,sanitary stainless steel screw butterfly valve sanitary stainless steel screw butterfly valve1)Material : AISI304, AISI304L, AISI316, AISI316L2 ... )Butterfly valve body and disk were all out from full machined, high polished that demanded of the high quality in the ... free to contact us for further information sanitary stainless steel screw butterfly valve