... ,ISO,IDF,RJT.3A3. Size:DN25-DN100,1"-4"4. Sealing material: EPDM, Silicone, Viton5. Operation : Available for pull handle 4 position ... CNC machine ,high polished,Ra less than 0.6μm.Material:304,304L,316,316LWorking principle: remote- controlled , operation by the ...