口径范围：1/2""~2""(DN15~DN50）压力等级：ASME CLASS 150~4500（PN16~PN760）主体材料：碳钢、不锈钢、合金钢及双相钢、镍基、钛合金等连接方式：RF, BW, RTJ,SW,NPT等操作方式：手动、气动、电动及液动等
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