4 thoughts on “Is there a QQ group designed by HVAC? There are many people and professional.”

  1. You add warmth China III QQ group number: 17721721 The first two are full! When adding groups, the regional company name or professional, do not accept product vendors, equipment vendors, ban various advertisements, focus on energy -saving services and project cooperation.

  2. 52348117
    The newly added newly added administrator of the HVAC technical exchange group! Intersection Intersection Intersection Intersection Intersection Intersection Intersection Intersection Intersection

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