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不銹鋼伸縮器Stainless steel valve is公稱通徑 Nominal diameter: DN15~DN3000mm公稱壓力 Nominal pressure: PN0.6~4.0MPa適用介質 Applicable medium:水、污水、海水 Water,dirty water,sea water適用溫度 Applicable temperature: ≤300℃