问题描述：
Obturator and diaphragm:EPDM ,EPDM是什么材料?
Technical specifications
Materials:
Body:dezincification-resistant alloy CR
EN 12165 CW602N chrome plated
Stem:brass EN 12164 CW614N
Obturator and diaphragm:EPDM
Spring:steel EN10270-1 SH
Control Knob:PA6GF
技术规格
材料：
身体：抗脱锌合金CR
EN12165 CW602N镀铬
阀杆：黄铜EN12164 CW614N
闭孔和隔膜：EPDM
弹簧：钢EN10270-1 SH
控制旋钮：PA6GF
Technical specifications
Materials:
Body:dezincification-resistant alloy CR
EN 12165 CW602N chrome plated
Stem:brass EN 12164 CW614N
Obturator and diaphragm:EPDM
Spring:steel EN10270-1 SH
Control Knob:PA6GF
技术规格
材料：
身体：抗脱锌合金CR
EN12165 CW602N镀铬
阀杆：黄铜EN12164 CW614N
闭孔和隔膜：EPDM
弹簧：钢EN10270-1 SH
控制旋钮：PA6GF
问题解答：
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