We can supply bulletproof ceramic with good quality. 97% and 99% bulletproof Al2O3 ceramic Density:> 3.85 SiC ceramic B4C ceramic Density:> 2.48 Bulletproof plate: High grade Bulletproof Plate Produced by Fiber and Al2O3 ceramic. The protection level can be NIJ III and NIJ IV'. 250x30mm 2. 4kg NIJ III 250X300mm 3. 0kg NIJ IV