SP2热电部电站阀及配件8302627293等公开询比价 中国石化上海石油化工股份有限公司压盖填料\H62Y-250 DN225 Inconel 600+石墨 Φ60×80×90压力自密封组件\H62Y-250 DN225 304+石墨 Φ270×240×32 45°截止阀\J68Y-320DN20截止阀\J68Y-320DN32截止阀\J68Y-320 DN50截止阀\J61Y-P57/170V DN40截止阀\J68Y-320DN32截止阀\J61Y-250DN20截止阀\J61Y-100 DN80截止阀\J61Y-P57/170V DN20截止阀\J68Y-320 DN50截止阀\J68Y-320DN20截止阀\J68Y-320DN32截止阀\J61Y-P57/170V DN20截止阀\J61Y-P57/170V DN50
2026-05-29