What materials are required to be tested?
Curtain wall works need to re-inspection materials
The first is the keel material: channel, angle, some supervision also requires steel to be measured; followed by chemical anchor to do on-site drawing experiment, as if to do three groups; and then is the glass aluminum.
Main profiles (including aluminum and steel profiles), screw bolts, drawing test, four-color inspection, hardware accessories
The project is mainly hidden before the board, including steel keel, anti-corrosion operations, materials, such as inspection and other processes.