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海北彈性座封閘閥 Flexible sealed gate valve Z45X、Z41X、Z945X
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海北手動刀型閘閥Manual-knife-type-gate-valve
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海北電動刀型閘閥 Electric knife type gate valve PZ973W/F/H
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海北氣動刀型閘閥 Pneumatic knife gate valve PZ673W/F/H
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海北傘齒輪對夾式刀型閘閥 Bevel gear pair of clip type knife type gate valve PZ573X/F/H/Y
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海北鏈輪刀型閘閥 Sprocket cutter type gate valve PZ4L73W/F/H
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海北手動刀型閘閥 主要性能規(guī)范 Main performance specification 主要連接尺寸 Main connection dimensions Manual knife type gate valve PZ73W/F/H
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海北明桿、暗桿（耐磨）刀型閘閥 Rod, dark rod (wear) knife type gate valve
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海北國標(biāo)電站閘閥 National standard power station gate valve Z960Y-100~320
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海北國標(biāo)電站閘閥 National standard power station gate valve Z60Y-100~320
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海北高壓平板閘閥Flat-plate gate valve ZF43Y、ZF63Y、ZF83Y
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海北自動補償平衡式雙平板閘閥 Auto compensation balanced double parallel gate valve KZ544、KZ644、KZ944WF/WY
