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Control valve
DB30000 series regulating valve
DQO series cut-off valve
Butterfly valve series
DQVT series slurry valve
DQJGX series roller pinch valve
DQZ series gate valve
Fluorine lined valve series
Special valve series
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ATA-2 air pressure altitude simulator
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ATA-2 air pressure altitude simulator
QCTS-9 dynamic and static pressure testing system
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