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压盖式伸缩接头SSJBGland type expansion joint SSJB type公称通径 Nominal diameter: DN50~DN1200公称压力 Nominal pressure: PN0.6~1.6MPa适用介质 Applicable medium:水、污水、海水、油、气 Water,dirty water,sea water,oil,steam适用温度 Applicable temperature: -10℃-150℃