Figure 15. SEM image of PBPG UL-752 A1B1C1D1E1F1 experiment

From

Grey Relational Analysis of Chemical Assisted USM of Polycarbonate Bullet Proof (UL-752) & Acrylic Heat Resistant (BS-476) Glass

Kanwal Jeet Singh, Inderpreet Singh Ahuja, Jatinder Kapoor

American Journal of Mechanical Engineering. 2017, 5(3), 94-109 doi:10.12691/ajme-5-3-5