... CNS Standard With Carbon Steel Stem #45 & EPDM Rubber.2. PVC Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With ... Stainless Steel Stem # 420 & EPDM Rubber.3. PVC Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With Stainless ... Steel Stem # 304 & EPDM Rubber4. PVC Butterfly Valve ( Lever ) DIN, ANSI, JIS, CNS Standard With Stainless ...