Certificates of Shanghai Tofflon Dehui Purifying Air-Conditioning Installation Co., Ltd.
Construction Enterprise Qualification Certificate
Quality Management System Certificate 2024
Environmental Management System Certificate
Quality Management System Certificate
Occupational Health and Safety Management System Certificate
Shanghai Construction Engineering Quality Structure Award
Shanghai Shenan Cup Award
Certificates of Shanghai Tofflon Dehui Cleanroom & HVAC System Co., Ltd.
Patent certificate for a kind of keel profile
Patent certificate of cross-type keel connector
Patent certificate for the installation structure of modular gusset plate and profile keel
Patent certificate for modular clean plant structure
Patent certificate for ceiling structure of modular clean workshop
Patent certificate of T-type keel connector
Patent certificate of L-shaped keel connector
Patent certificate for installation structure of air outlet of modular clean workshop
CE certificate
ISO certificate
Patent certificate of online air volume detector
Patent certificate for a transfer window with a chain mechanism
Patent certificate for purification air conditioning unit
Patent certificate for a clean transfer window
Patent certificate for a clean weighing chamber
Patent certificate for sealing box structure of high-efficiency air supply port
Patent certificate for the structure of the air supply surface of the transfer window
Patent certificate for the structure of the air outlet surface of the weighing chamber
Patent certificate for the intermediate profile of the air conditioning unit without cold bridge structure
Patent certificate of preheating pipeline structure of air conditioning unit
Air conditioning unit frame profile structure without cold bridge structure patent certificate
Air conditioning unit corner profile without cold bridge structure patent certificate
Air conditioning unit water retaining device patent certificate
Patent certificate for air conditioner antifreeze table cooler structure
Surface cooler piping construction certificate
Certificate of High-tech Enterprise
Certification
Certification
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