China manufacturer high quality galvanized steel square rectangular common flange flexible duct. The common flange flexible duct has low resistance,high density, good feature of compression strength, fire-proof performance better than steel plate,oxygen index 100, non-burning Grade A.
Read MoreSend InquiryChina manufacturer High quality Flexible Duct Connector Spare Parts for Air Duct Connector HVAC exhaust system. Spare parts & accessories including flexible duct connector,square & round duct connector,spiral clamp,flange corner,air conditioner bracket,nylon filter mesh etc. Flexible duct connector is widely used in government departments,airports,star hotels,hotels,office buildings,residential buildings,villas,shops and other office and home places.
Read MoreSend Inquiry