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  • The internal and external anticorrosion of the valve seat of the rod
    Common problem / 2017-06-131
    Body (including variable speed transmission box) in...
  • Elastic soft seal gate valve and hard seal gate valve in all aspects of the diff
    Common problem / 2017-06-131
    Hard seal is a seal between metal and metal, sealed...
  • Water control valve design selection points
    Common problem / 2017-06-131
    Automatic sprinkler system to be decompression, the...
  • Butterfly buffer check valve classification
    Common problem / 2017-06-131
    Butterfly buffer check valve disc was disc-shaped, ...
  • Butterfly valve technical knowledge
    Common problem / 2017-06-131
    Butterfly valve refers to the closure for the disc,...
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