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带颈对焊法兰 Welding Neck flange带颈对焊法兰 Welding Neck flange

带颈对焊法兰 Welding Neck flange

2024-06-04 15:56:49 1212
平面(FF)对焊WN钢制管法兰突面(RF)对焊WN钢制管法兰
凹凸面(MF)对焊WN钢制管法兰榫槽面(TG)对焊钢制管法兰
O型圈面(OSG)对焊WN钢制管法兰环连接面(RJ)对焊WN钢制管法兰