GEM

GEM Gianni Industries, Inc. (trading as GEM®) is a Taiwan-based specialist founded in 1992, manufacturing a full lineup of access-control hardware. Their core products include: Electromagnetic locks (holding forces from several hundred to 1,200 lbs on single/double doors), Electric strikes (ANSI/UL/CE‑rated, adjustable for fail-safe/fail-secure), Electric dropbolts, shear locks, automatic door operators, cabinet and electromechanical locks.