Manufacturing method of shell of smoke exhaust ventilator, smoke exhaust ventilator, shell of smoke exhaust ventilator and shell parts

Manufacturing method of shell of smoke exhaust ventilator, smoke exhaust ventilator, shell of smoke exhaust ventilator and shell parts

  • CN 104,344,444 A
  • Filed: 08/09/2013
  • Published: 02/11/2015
  • Est. Priority Date: 08/09/2013
  • Status: Active Application
First Claim
Patent Images

1. the lower shell piece for smoke exhaust ventilator (1), is characterized in that:

  • Described lower shell piece (1) comprises basic styling and distortion moulding, and described distortion moulding is processed further and obtained on the basis of described basic styling;

    The upper housing member (2) that described basic styling mates is different from the upper housing member (2) that described distortion moulding is mated.

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