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铁制旋塞阀 衬橡胶和氟塑料的衬里层厚度_阀门标准
铁制旋塞阀 衬橡胶和氟塑料的衬里层厚度
| 阀门公称尺寸 DN | 氟塑料 | 橡胶 |
| 15～32 | 2.5 | 2.5 |
| 40～80 | 3.0 | 3.0 |
| 100～150 | 4.0 | 4.0 |
| 200～600 | 4.0 | 5.0 |
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