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  • ETFE ethylene tetraflu oroethylene copolyme r is a fluorine-based plastic designed to have high c...
    · May 23 '22
  • Test kits are designed for use where a preliminary screening test result is required and are es...
    · May 23 '22
  • The spiral duct forming machine is mainly used for making round spiral air duct. Adopting ...
    · May 23 '22

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