Nashiji wired glass: Size: 1830x2440 mm Thickness: 6mm 33pcs/crate Fire-resisting time: 72 minutes Features 1)fireproof sfety: wired glass is suitable to be used as an efficent fireproof material. Even wired breaks om tje fore/ tje fragments will still conect with each other by the wire meshed and not fall down. Which prevent fire spereading 2) shock resistant safety: even wired glass brokend in shocking. Wooden crates