The upper and lower double-layer panels, both sides are turned inward, and the keel grooves are reversely buckled, which play a supporting and fixing role and prevent the panel from falling off. It is an ideal ceiling material.
The upper and lower double-layer panels, both sides are turned inward, and the keel grooves are reversely buckled, which play a supporting and fixing role and prevent the panel from falling off. It is an ideal ceiling material.