ساندویچ پانل پشم سنگ

Item

Double-lock (two-sided interlocking) sandwich panels

Quad-Lock Polyurethane Sandwich Panel (Four-Sided Interlocking  Panel)

Joint Method

With buckle joints on two sides (top - bottom or left - right)

Tongue - and - groove structures designed on all four sides (top - bottom + left - right)

Installation Method

Horizontal insertion or vertical fitting

Insertable in any direction on four sides, with tighter engagement

Sealing Treatment

Usually need to apply sealant or install sealing strips

With multiple built - in tongue - and - groove seals, better airtightness

Protection Effect

Average windproof/dust - proof performance

Better windproof, waterproof and cold - bridge - preventing performance