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Material:PP Description: 1. Model: three-piece 2. Pressure environment: normal pressure 3. Working temperature: normal temperature 4. Form: plug type 5. Flow direction: one way 6. Three-piece check valve, used with stainless steel drum or fermentation tank fermentation tank, to isolate air from carbon dioxide 7. Dimensions: 12 cm high, 3.8 cm wide, 1 cm diameter at the bottom 8. Weight: 19.29 g net weight
