Do you know the level and structure of bulletproof glass

The level of resistant glass

PRODUCT：THICKNESS~WEIGHT（LBS/SF）~PROTECTION LEVEL

UL Level 1：3/4″≈19mm~7.84~9mm Full Metal Copper Jacket with Lead Core

UL Level 1：7/8″≈22mm~9.65~9mm Full Metal Copper Jacket with Lead Core

UL Level 2：15/16″≈24mm~11.11.35~7 Magnum Jacketed Lead Soft Point

UL Level 3：1+1/8″≈29mm~12.81~.44 Magnum Lead Semi-Wadcutter Gas Checked

UL Level 4：1+1/4″≈32mm~14.5~.30 Caliber Rifle Lead Core Soft Point (.30-06 Caliber)

UL Level 5：1+3/8″≈35mm~16.09~7.62mm Rifle Lead Core Full Metal Copper Jacket, Military Ball (.308 Caliber) One (1) Shot

UL Level 7：1+15/16″≈50mm~23.952~5.56mm Rifle Full Metal Copper Jacket with Lead No Spall, No Penetration

UL Level 8：2+3/8″≈60mm~26.29~7.62mm Rifle Lead Core Full Metal Copper Jacket, Military Ball (.308 Caliber) Five (5) Shots

NIJ Level IIA：3/4″≈19mm~7.84~.357 Magnum Jacketed Lead Soft Point，9mm Full Metal Jacket

NIJ Level IIA：7/8″≈22mm~9.65~.357 Magnum Jacketed Lead Soft Point，9mm Full Metal Jacket

NIJ Level III：1+9/16″≈40mm~18.39~7.62mm (308 Winchester) Full Metal Jacket

NIJ Level IIIA：1+1/4″≈32mm~14.5~.44 Magnum Lead Semi-Wadcutter Gas Checked，9mm Full Metal Jacket

NIJ Level IV：2+3/16″≈56mm~25.3~.30-06 Armor Piercing

NIJ Level IIIA：1+1/4″≈32mm~7.97~.44 Magnum Lead Semi-Wadcutter Gas Checked

The structure of bulletproof glass

• Bullet Resistant glass(All Glass)

• Glass-Clad Polycarbonates

• Laminated Polycarbonates

• Special Glass Combined with  Laminated Polycarbonate in a Double-Glazed Unit

Level 3 bullet resistant glass

UL Level 3    1+1/4″    9.64    .44 Magnum Lead Semi-Wadcutter Gas Checked

UL Level 3    1+1/4″    7.97    .44 Magnum Lead Semi-Wadcutter Gas Checked、

UL Level 3    1+1/8″    12.81    .44 Magnum Lead Semi-Wadcutter Gas Checked

UL Level 3    2+3/32″    26.38    .44 Magnum Lead Semi-Wadcutter Gas Checked

NIJ Level III    1+9/16″    18.39    7.62mm (308 Winchester) Full Metal Jacket

GA165 Level 3   15/16″    11.11   7.62mm rifle lead core all metal copper jacket