Patent certificates

We have applied for 103 ventilation patents, 75 of which have been authorized

A high-temperature, corrosion-resistant, and moisture resistant air duct

A device for adjusting the ventilation volume of an air duct

A C-type socket flange component for air duct connection

A type of insulation duct through cabin component

A horizontally installed louver with a water channel

A long strip air outlet distributor

An outdoor duct protection armor component

A duct filtration device with negative pressure balance function

Anti corrosion fixing structure for aluminum alloy bracket and air duct bracket

A fixed structure for air duct through cabin

A type of air duct filtration device

A laundry room exhaust end filtration device

Anti corrosion fixed installation structure of water mist separator

A fixed louver window for passenger ship ventilation openings

A fixed device for air ducts

A ventilation static pressure box for public areas of passenger ships_

A fixed device for sound-absorbing sheets inside a structural air duct

A noise reduction and air supply system for yachts

A static pressure box air duct end device

A long shuttle type blade air valve and its assembly method

A manual steel rainproof louver

A Louver Fixed to the Air Vent of Passenger Ship

An Air Duct Fixing Device

A Plenum Chamber Air Duct End Device

An Aluminum Alloy Support and Air Duct Support Anticorrosion Fixing Structure

A Water Mist Separator Anticorrosion Fixed Installation Structure

A Thermal Insulating Air Duct Cabin Going-through Part

A Horizontally-installed Louver with a Guiding Gutter

System certificates

Quality Management System Certificate

Occupational Health and Safety Management System Certificate

Certificate of Honor

High-Tech Enterprise Certificate

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0512-66517455

Shanghai Zhaohe Ventilation Engineering Co., Ltd.
Address：629,6/F,Block A,Baosteel Pudong International Trade Building,No.88 Hedan Road,Waigaoqiao Free Trade Zone,Pudong New District,Shanghai

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