电 话：xxxx-00000000
传 真：xxxx-000000
邮 箱：xxxxx.cn
地 址：xxxxxxxxxx
Material: Aluminum profile
Specification size: match the design size
It is composed of two internal and external frames, and its inner frame is a valve type, which is usually installed on the ceiling and is used as an entrance and exit for the maintenance of equipment in the ceiling.
Fortune 500 Government platform Bulk package TOP developer Public facilities Universities and hospitals
